39161994 has 16 divisors (see below), whose sum is σ = 78468480. Its totient is φ = 13029920.

The previous prime is 39161989. The next prime is 39162023. The reversal of 39161994 is 49916193.

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, 2322 + ... + 9149.

It is an arithmetic number, because the mean of its divisors is an integer number (4904280).

Almost surely, 2^39161994 is an apocalyptic number.

39161994 is an abundant number, since it is smaller than the sum of its proper divisors (39306486).

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

39161994 is a wasteful number, since it uses less digits than its factorization.

39161994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12045.

The product of its digits is 52488, while the sum is 42.

The square root of 39161994 is about 6257.9544581277. The cubic root of 39161994 is about 339.5900306590.

The spelling of 39161994 in words is "thirty-nine million, one hundred sixty-one thousand, nine hundred ninety-four".