31474216 has 16 divisors (see below), whose sum is σ = 59188500. Its totient is φ = 15690624.

The previous prime is 31474213. The next prime is 31474217. The reversal of 31474216 is 61247413.

It can be written as a sum of positive squares in 2 ways, for example, as 31472100 + 2116 = 5610^2 + 46^2 .

It is not an unprimeable number, because it can be changed into a prime (31474213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845 + ... + 8428.

Almost surely, 2^31474216 is an apocalyptic number.

It is an amenable number.

31474216 is a deficient number, since it is larger than the sum of its proper divisors (27714284).

31474216 is a wasteful number, since it uses less digits than its factorization.

31474216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11628 (or 11624 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 31474216 is about 5610.1885886305. The cubic root of 31474216 is about 315.7317865113.

The spelling of 31474216 in words is "thirty-one million, four hundred seventy-four thousand, two hundred sixteen".