31411472 has 20 divisors (see below), whose sum is σ = 61132620. Its totient is φ = 15635328.

The previous prime is 31411451. The next prime is 31411487. The reversal of 31411472 is 27411413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20939776 + 10471696 = 4576^2 + 3236^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623 + ... + 7950.

It is an arithmetic number, because the mean of its divisors is an integer number (3056631).

Almost surely, 2^31411472 is an apocalyptic number.

It is an amenable number.

31411472 is a deficient number, since it is larger than the sum of its proper divisors (29721148).

31411472 is a wasteful number, since it uses less digits than its factorization.

31411472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8810 (or 8804 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 31411472 is about 5604.5938300648. The cubic root of 31411472 is about 315.5218426664.

Adding to 31411472 its reverse (27411413), we get a palindrome (58822885).

The spelling of 31411472 in words is "thirty-one million, four hundred eleven thousand, four hundred seventy-two".