39669938 has 32 divisors (see below), whose sum is σ = 74666880. Its totient is φ = 15356160.

The previous prime is 39669923. The next prime is 39669943. The reversal of 39669938 is 83996693.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 39669938.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25898 + ... + 27386.

It is an arithmetic number, because the mean of its divisors is an integer number (2333340).

Almost surely, 2^39669938 is an apocalyptic number.

39669938 is a deficient number, since it is larger than the sum of its proper divisors (34996942).

39669938 is a wasteful number, since it uses less digits than its factorization.

39669938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682.

The product of its digits is 1889568, while the sum is 53.

The square root of 39669938 is about 6298.4075765228. The cubic root of 39669938 is about 341.0519266302.

The spelling of 39669938 in words is "thirty-nine million, six hundred sixty-nine thousand, nine hundred thirty-eight".