36899920 has 40 divisors (see below), whose sum is σ = 88565760. Its totient is φ = 14282880.

The previous prime is 36899903. The next prime is 36899923. The reversal of 36899920 is 2999863.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36899923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4960 + ... + 9919.

It is an arithmetic number, because the mean of its divisors is an integer number (2214144).

Almost surely, 2^36899920 is an apocalyptic number.

36899920 is the 4960-th pentagonal number.

It is an amenable number.

36899920 is an abundant number, since it is smaller than the sum of its proper divisors (51665840).

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

36899920 is a wasteful number, since it uses less digits than its factorization.

36899920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14923 (or 14917 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 36899920 is about 6074.5304345274. The cubic root of 36899920 is about 332.9214735464.

The spelling of 36899920 in words is "thirty-six million, eight hundred ninety-nine thousand, nine hundred twenty".