756540028 has 12 divisors (see below), whose sum is σ = 1324901200. Its totient is φ = 377996832.

The previous prime is 756540013. The next prime is 756540041. The reversal of 756540028 is 820045657.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62001 + ... + 73192.

Almost surely, 2^756540028 is an apocalyptic number.

It is an amenable number.

756540028 is a deficient number, since it is larger than the sum of its proper divisors (568361172).

756540028 is a wasteful number, since it uses less digits than its factorization.

756540028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136596 (or 136594 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 756540028 is about 27505.2727308783. The cubic root of 756540028 is about 911.1935503941.

The spelling of 756540028 in words is "seven hundred fifty-six million, five hundred forty thousand, twenty-eight".