31322468 has 6 divisors (see below), whose sum is σ = 54814326. Its totient is φ = 15661232.

The previous prime is 31322441. The next prime is 31322477. The reversal of 31322468 is 86422313.

It can be written as a sum of positive squares in only one way, i.e., 28111204 + 3211264 = 5302^2 + 1792^2 .

It is a super-2 number, since 2×31322468² = 1962194003222048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31322468.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915305 + ... + 3915312.

It is an arithmetic number, because the mean of its divisors is an integer number (9135721).

Almost surely, 2^31322468 is an apocalyptic number.

It is an amenable number.

31322468 is a deficient number, since it is larger than the sum of its proper divisors (23491858).

31322468 is a wasteful number, since it uses less digits than its factorization.

31322468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830621 (or 7830619 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 31322468 is about 5596.6479253210. The cubic root of 31322468 is about 315.2235517329.

The spelling of 31322468 in words is "thirty-one million, three hundred twenty-two thousand, four hundred sixty-eight".