31274080 has 48 divisors (see below), whose sum is σ = 74952864. Its totient is φ = 12328960.

The previous prime is 31274053. The next prime is 31274099. The reversal of 31274080 is 8047213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9984 + ... + 12736.

It is an arithmetic number, because the mean of its divisors is an integer number (1561518).

Almost surely, 2^31274080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31274080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37476432).

31274080 is an abundant number, since it is smaller than the sum of its proper divisors (43678784).

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

31274080 is a wasteful number, since it uses less digits than its factorization.

31274080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 31274080 is about 5592.3233096809. The cubic root of 31274080 is about 315.0611454326.

The spelling of 31274080 in words is "thirty-one million, two hundred seventy-four thousand, eighty".