31249494 has 24 divisors (see below), whose sum is σ = 68006952. Its totient is φ = 10370400.

The previous prime is 31249487. The next prime is 31249499. The reversal of 31249494 is 49494213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31249499) 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, 469 + ... + 7919.

It is an arithmetic number, because the mean of its divisors is an integer number (2833623).

Almost surely, 2^31249494 is an apocalyptic number.

31249494 is an abundant number, since it is smaller than the sum of its proper divisors (36757458).

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

31249494 is a wasteful number, since it uses less digits than its factorization.

31249494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692 (or 7689 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 31249494 is about 5590.1246855504. The cubic root of 31249494 is about 314.9785624111.

The spelling of 31249494 in words is "thirty-one million, two hundred forty-nine thousand, four hundred ninety-four".