42867231 has 8 divisors (see below), whose sum is σ = 62352384. Its totient is φ = 25980120.

The previous prime is 42867229. The next prime is 42867233. The reversal of 42867231 is 13276824.

42867231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42867229) and next prime (42867233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42867231 - 2¹ = 42867229 is a prime.

It is a super-2 number, since 2×42867231² = 3675198987214722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1299007 = 42867231 / (4 + 2 + 8 + 6 + 7 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 42867192 and 42867201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42867233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649471 + ... + 649536.

It is an arithmetic number, because the mean of its divisors is an integer number (7794048).

Almost surely, 2^42867231 is an apocalyptic number.

42867231 is a deficient number, since it is larger than the sum of its proper divisors (19485153).

42867231 is a wasteful number, since it uses less digits than its factorization.

42867231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299021.

The product of its digits is 16128, while the sum is 33.

The square root of 42867231 is about 6547.3071563812. The cubic root of 42867231 is about 349.9788585869.

The spelling of 42867231 in words is "forty-two million, eight hundred sixty-seven thousand, two hundred thirty-one".