36399138 has 8 divisors (see below), whose sum is σ = 72798288. Its totient is φ = 12133044.

The previous prime is 36399137. The next prime is 36399161. The reversal of 36399138 is 83199363.

It is a sphenic number, since it is the product of 3 distinct primes.

36399138 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 36399138.

It is not an unprimeable number, because it can be changed into a prime (36399137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033256 + ... + 3033267.

It is an arithmetic number, because the mean of its divisors is an integer number (9099786).

Almost surely, 2^36399138 is an apocalyptic number.

36399138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

36399138 is a wasteful number, since it uses less digits than its factorization.

36399138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6066528.

The product of its digits is 104976, while the sum is 42.

The square root of 36399138 is about 6033.1698136220. The cubic root of 36399138 is about 331.4085431636.

The spelling of 36399138 in words is "thirty-six million, three hundred ninety-nine thousand, one hundred thirty-eight".