756449064 has 96 divisors (see below), whose sum is σ = 2444342400. Its totient is φ = 216125280.

The previous prime is 756449063. The next prime is 756449081. The reversal of 756449064 is 460944657.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756449063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25152 + ... + 46319.

It is an arithmetic number, because the mean of its divisors is an integer number (25461900).

Almost surely, 2^756449064 is an apocalyptic number.

It is an amenable number.

756449064 is an abundant number, since it is smaller than the sum of its proper divisors (1687893336).

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

756449064 is a wasteful number, since it uses less digits than its factorization.

756449064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71500 (or 71483 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 756449064 is about 27503.6191073102. The cubic root of 756449064 is about 911.1570292455.

The spelling of 756449064 in words is "seven hundred fifty-six million, four hundred forty-nine thousand, sixty-four".