756138204 has 36 divisors (see below), whose sum is σ = 1918809984. Its totient is φ = 251062272.

The previous prime is 756138203. The next prime is 756138239. The reversal of 756138204 is 402831657.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756138203) 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, 31612 + ... + 50115.

Almost surely, 2^756138204 is an apocalyptic number.

It is an amenable number.

756138204 is an abundant number, since it is smaller than the sum of its proper divisors (1162671780).

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

756138204 is a wasteful number, since it uses less digits than its factorization.

756138204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81994 (or 81989 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 756138204 is about 27497.9672703275. The cubic root of 756138204 is about 911.0321999187.

The spelling of 756138204 in words is "seven hundred fifty-six million, one hundred thirty-eight thousand, two hundred four".