756942720 has 64 divisors (see below), whose sum is σ = 2412761040. Its totient is φ = 201850880.

The previous prime is 756942713. The next prime is 756942727. The reversal of 756942720 is 27249657.

It is an interprime number because it is at equal distance from previous prime (756942713) and next prime (756942727).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756942727) 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, 195201 + ... + 199040.

Almost surely, 2^756942720 is an apocalyptic number.

It is an amenable number.

756942720 is an abundant number, since it is smaller than the sum of its proper divisors (1655818320).

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

756942720 is a wasteful number, since it uses less digits than its factorization.

756942720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394263 (or 394251 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 756942720 is about 27512.5920261977. The cubic root of 756942720 is about 911.3551921030.

The spelling of 756942720 in words is "seven hundred fifty-six million, nine hundred forty-two thousand, seven hundred twenty".