39900836 has 48 divisors (see below), whose sum is σ = 78926400. Its totient is φ = 17538048.

The previous prime is 39900829. The next prime is 39900841. The reversal of 39900836 is 63800993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 39900836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114815 + ... + 115161.

It is an arithmetic number, because the mean of its divisors is an integer number (1644300).

Almost surely, 2^39900836 is an apocalyptic number.

It is an amenable number.

39900836 is a deficient number, since it is larger than the sum of its proper divisors (39025564).

39900836 is a wasteful number, since it uses less digits than its factorization.

39900836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 39900836 is about 6316.7108529677. The cubic root of 39900836 is about 341.7123420462.

The spelling of 39900836 in words is "thirty-nine million, nine hundred thousand, eight hundred thirty-six".