31372496 has 40 divisors (see below), whose sum is σ = 66067200. Its totient is φ = 14376960.

The previous prime is 31372493. The next prime is 31372513. The reversal of 31372496 is 69427313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31372493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7760 + ... + 11088.

It is an arithmetic number, because the mean of its divisors is an integer number (1651680).

Almost surely, 2^31372496 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 31372496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33033600).

31372496 is an abundant number, since it is smaller than the sum of its proper divisors (34694704).

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

31372496 is a wasteful number, since it uses less digits than its factorization.

31372496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387 (or 3381 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 31372496 is about 5601.1156031634. The cubic root of 31372496 is about 315.3912866570.

The spelling of 31372496 in words is "thirty-one million, three hundred seventy-two thousand, four hundred ninety-six".