31442704 has 20 divisors (see below), whose sum is σ = 61313164. Its totient is φ = 15619968.

The previous prime is 31442689. The next prime is 31442717. The reversal of 31442704 is 40724413.

It can be written as a sum of positive squares in 2 ways, for example, as 20684304 + 10758400 = 4548^2 + 3280^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3747 + ... + 8770.

Almost surely, 2^31442704 is an apocalyptic number.

It is an amenable number.

31442704 is a deficient number, since it is larger than the sum of its proper divisors (29870460).

31442704 is a wasteful number, since it uses less digits than its factorization.

31442704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12682 (or 12676 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 31442704 is about 5607.3794235810. The cubic root of 31442704 is about 315.6263810546.

The spelling of 31442704 in words is "thirty-one million, four hundred forty-two thousand, seven hundred four".