31493052 has 18 divisors (see below), whose sum is σ = 79607528. Its totient is φ = 10497672.

The previous prime is 31493047. The next prime is 31493053. The reversal of 31493052 is 25039413.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31493053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 437368 + ... + 437439.

Almost surely, 2^31493052 is an apocalyptic number.

It is an amenable number.

31493052 is an abundant number, since it is smaller than the sum of its proper divisors (48114476).

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

31493052 is a wasteful number, since it uses less digits than its factorization.

31493052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874817 (or 874812 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 31493052 is about 5611.8670689887. The cubic root of 31493052 is about 315.7947580344.

The spelling of 31493052 in words is "thirty-one million, four hundred ninety-three thousand, fifty-two".