31474368 has 84 divisors (see below), whose sum is σ = 92006928. Its totient is φ = 10283520.

The previous prime is 31474363. The next prime is 31474397. The reversal of 31474368 is 86347413.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (31474363) 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, 30013 + ... + 31043.

Almost surely, 2^31474368 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 31474368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46003464).

31474368 is an abundant number, since it is smaller than the sum of its proper divisors (60532560).

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

31474368 is a wasteful number, since it uses less digits than its factorization.

31474368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1089 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 31474368 is about 5610.2021353958. The cubic root of 31474368 is about 315.7322947702.

The spelling of 31474368 in words is "thirty-one million, four hundred seventy-four thousand, three hundred sixty-eight".