31406472 has 48 divisors (see below), whose sum is σ = 87809280. Its totient is φ = 10130400.

The previous prime is 31406471. The next prime is 31406489. The reversal of 31406472 is 27460413.

31406472 is a `hidden beast` number, since 3 + 14 + 0 + 647 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31406471) 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, 4804 + ... + 9267.

It is an arithmetic number, because the mean of its divisors is an integer number (1829360).

Almost surely, 2^31406472 is an apocalyptic number.

It is an amenable number.

31406472 is an abundant number, since it is smaller than the sum of its proper divisors (56402808).

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

31406472 is a wasteful number, since it uses less digits than its factorization.

31406472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14114 (or 14107 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 31406472 is about 5604.1477496583. The cubic root of 31406472 is about 315.5051004506.

Adding to 31406472 its reverse (27460413), we get a palindrome (58866885).

It can be divided in two parts, 31406 and 472, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 31406472 in words is "thirty-one million, four hundred six thousand, four hundred seventy-two".