36138402 has 24 divisors (see below), whose sum is σ = 78414336. Its totient is φ = 12028536.

The previous prime is 36138397. The next prime is 36138409. The reversal of 36138402 is 20483163.

It is a happy number.

36138402 is a `hidden beast` number, since 3 + 613 + 8 + 40 + 2 = 666.

36138402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×36138402² = 2611968198227208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (36138409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18643 + ... + 20489.

It is an arithmetic number, because the mean of its divisors is an integer number (3267264).

Almost surely, 2^36138402 is an apocalyptic number.

36138402 is an abundant number, since it is smaller than the sum of its proper divisors (42275934).

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

36138402 is a wasteful number, since it uses less digits than its factorization.

36138402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 36138402 is about 6011.5224361222. The cubic root of 36138402 is about 330.6153257652.

The spelling of 36138402 in words is "thirty-six million, one hundred thirty-eight thousand, four hundred two".