31268442 has 16 divisors (see below), whose sum is σ = 63868032. Its totient is φ = 10200960.

The previous prime is 31268401. The next prime is 31268443. The reversal of 31268442 is 24486213.

It is not an unprimeable number, because it can be changed into a prime (31268443) 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, 55159 + ... + 55722.

It is an arithmetic number, because the mean of its divisors is an integer number (3991752).

Almost surely, 2^31268442 is an apocalyptic number.

31268442 is an abundant number, since it is smaller than the sum of its proper divisors (32599590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31268442 is a wasteful number, since it uses less digits than its factorization.

31268442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110933.

The product of its digits is 9216, while the sum is 30.

The square root of 31268442 is about 5591.8192030859. The cubic root of 31268442 is about 315.0422115264.

The spelling of 31268442 in words is "thirty-one million, two hundred sixty-eight thousand, four hundred forty-two".