39935994 has 32 divisors (see below), whose sum is σ = 93229056. Its totient is φ = 11166960.

The previous prime is 39935993. The next prime is 39936011. The reversal of 39935994 is 49953993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39935993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8142 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (2913408).

Almost surely, 2^39935994 is an apocalyptic number.

39935994 is an abundant number, since it is smaller than the sum of its proper divisors (53293062).

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

39935994 is a wasteful number, since it uses less digits than its factorization.

39935994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20290.

The product of its digits is 1180980, while the sum is 51.

The square root of 39935994 is about 6319.4931758805. The cubic root of 39935994 is about 341.8126774178.

The spelling of 39935994 in words is "thirty-nine million, nine hundred thirty-five thousand, nine hundred ninety-four".