39995394 has 32 divisors (see below), whose sum is σ = 83427840. Its totient is φ = 12768000.

The previous prime is 39995393. The next prime is 39995401. The reversal of 39995394 is 49359993.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39995393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17722 + ... + 19850.

It is an arithmetic number, because the mean of its divisors is an integer number (2607120).

Almost surely, 2^39995394 is an apocalyptic number.

39995394 is an abundant number, since it is smaller than the sum of its proper divisors (43432446).

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

39995394 is a wasteful number, since it uses less digits than its factorization.

39995394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266.

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

The square root of 39995394 is about 6324.1911735810. The cubic root of 39995394 is about 341.9820619161.

The spelling of 39995394 in words is "thirty-nine million, nine hundred ninety-five thousand, three hundred ninety-four".