31232042 has 16 divisors (see below), whose sum is σ = 47416320. Its totient is φ = 15428112.

The previous prime is 31232023. The next prime is 31232081. The reversal of 31232042 is 24023213.

It is a self number, because there is not a number n which added to its sum of digits gives 31232042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106448 + ... + 106740.

It is an arithmetic number, because the mean of its divisors is an integer number (2963520).

Almost surely, 2^31232042 is an apocalyptic number.

31232042 is a deficient number, since it is larger than the sum of its proper divisors (16184278).

31232042 is a wasteful number, since it uses less digits than its factorization.

31232042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 31232042 is about 5588.5635005787. The cubic root of 31232042 is about 314.9199158135.

Adding to 31232042 its reverse (24023213), we get a palindrome (55255255).

The spelling of 31232042 in words is "thirty-one million, two hundred thirty-two thousand, forty-two".