756449028 has 36 divisors (see below), whose sum is σ = 1940680560. Its totient is φ = 248385456.

The previous prime is 756449027. The next prime is 756449041. The reversal of 756449028 is 820944657.

It is a happy number.

756449028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (756449027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154398 + ... + 159221.

Almost surely, 2^756449028 is an apocalyptic number.

It is an amenable number.

756449028 is an abundant number, since it is smaller than the sum of its proper divisors (1184231532).

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

756449028 is a wasteful number, since it uses less digits than its factorization.

756449028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313696 (or 313691 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 756449028 is about 27503.6184528509. The cubic root of 756449028 is about 911.1570147913.

The spelling of 756449028 in words is "seven hundred fifty-six million, four hundred forty-nine thousand, twenty-eight".