756538812 has 48 divisors (see below), whose sum is σ = 1970752000. Its totient is φ = 250976880.

The previous prime is 756538771. The next prime is 756538813. The reversal of 756538812 is 218835657.

756538812 is a `hidden beast` number, since 7 + 565 + 3 + 8 + 81 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756538813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6189 + ... + 39387.

Almost surely, 2^756538812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 756538812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985376000).

756538812 is an abundant number, since it is smaller than the sum of its proper divisors (1214213188).

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

756538812 is a wasteful number, since it uses less digits than its factorization.

756538812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33423 (or 33415 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 756538812 is about 27505.2506260168. The cubic root of 756538812 is about 911.1930622014.

The spelling of 756538812 in words is "seven hundred fifty-six million, five hundred thirty-eight thousand, eight hundred twelve".