42266431 has 8 divisors (see below), whose sum is σ = 44553600. Its totient is φ = 39985560.

The previous prime is 42266417. The next prime is 42266443. The reversal of 42266431 is 13466224.

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

It is a cyclic number.

It is not a de Polignac number, because 42266431 - 2⁹ = 42265919 is a prime.

It is a super-2 number, since 2×42266431² = 3572902378955522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42266431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42266401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19710 + ... + 21748.

It is an arithmetic number, because the mean of its divisors is an integer number (5569200).

Almost surely, 2^42266431 is an apocalyptic number.

42266431 is a deficient number, since it is larger than the sum of its proper divisors (2287169).

42266431 is a wasteful number, since it uses less digits than its factorization.

42266431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149.

The product of its digits is 6912, while the sum is 28.

The square root of 42266431 is about 6501.2638002161. The cubic root of 42266431 is about 348.3361325956.

The spelling of 42266431 in words is "forty-two million, two hundred sixty-six thousand, four hundred thirty-one".