39630644 has 24 divisors (see below), whose sum is σ = 71251488. Its totient is φ = 19279520.

The previous prime is 39630623. The next prime is 39630659. The reversal of 39630644 is 44603693.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27059 + ... + 28485.

It is an arithmetic number, because the mean of its divisors is an integer number (2968812).

Almost surely, 2^39630644 is an apocalyptic number.

It is an amenable number.

39630644 is a deficient number, since it is larger than the sum of its proper divisors (31620844).

39630644 is a wasteful number, since it uses less digits than its factorization.

39630644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 39630644 is about 6295.2874437948. The cubic root of 39630644 is about 340.9392827973.

The spelling of 39630644 in words is "thirty-nine million, six hundred thirty thousand, six hundred forty-four".