42233031 has 12 divisors (see below), whose sum is σ = 61564360. Its totient is φ = 27896400.

The previous prime is 42233017. The next prime is 42233041. The reversal of 42233031 is 13033224.

It is not a de Polignac number, because 42233031 - 2⁵ = 42232999 is a prime.

It is a super-2 number, since 2×42233031² = 3567257814893922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42232995 and 42233013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42233041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20545 + ... + 22506.

Almost surely, 2^42233031 is an apocalyptic number.

42233031 is a deficient number, since it is larger than the sum of its proper divisors (19331329).

42233031 is a wasteful number, since it uses less digits than its factorization.

42233031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43166 (or 43163 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 42233031 is about 6498.6945612177. The cubic root of 42233031 is about 348.2443537496.

Adding to 42233031 its reverse (13033224), we get a palindrome (55266255).

The spelling of 42233031 in words is "forty-two million, two hundred thirty-three thousand, thirty-one".