39991352 has 16 divisors (see below), whose sum is σ = 78930600. Its totient is φ = 18943200.

The previous prime is 39991331. The next prime is 39991363. The reversal of 39991352 is 25319993.

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 3 ways as a sum of consecutive naturals, for example, 131399 + ... + 131702.

Almost surely, 2^39991352 is an apocalyptic number.

It is an amenable number.

39991352 is a deficient number, since it is larger than the sum of its proper divisors (38939248).

39991352 is a wasteful number, since it uses less digits than its factorization.

39991352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263126 (or 263122 counting only the distinct ones).

The product of its digits is 65610, while the sum is 41.

The square root of 39991352 is about 6323.8715989495. The cubic root of 39991352 is about 341.9705411056.

The spelling of 39991352 in words is "thirty-nine million, nine hundred ninety-one thousand, three hundred fifty-two".