42862231 has 4 divisors (see below), whose sum is σ = 43175232. Its totient is φ = 42549232.

The previous prime is 42862229. The next prime is 42862241. The reversal of 42862231 is 13226824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42862231 - 2¹ = 42862229 is a prime.

It is a super-2 number, since 2×42862231² = 3674341692594722, 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 42862231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42862241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156295 + ... + 156568.

It is an arithmetic number, because the mean of its divisors is an integer number (10793808).

Almost surely, 2^42862231 is an apocalyptic number.

42862231 is a deficient number, since it is larger than the sum of its proper divisors (313001).

42862231 is a wasteful number, since it uses less digits than its factorization.

42862231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313000.

The product of its digits is 4608, while the sum is 28.

The square root of 42862231 is about 6546.9253088759. The cubic root of 42862231 is about 349.9652509719.

The spelling of 42862231 in words is "forty-two million, eight hundred sixty-two thousand, two hundred thirty-one".