746721256 has 16 divisors (see below), whose sum is σ = 1408694400. Its totient is φ = 371069424.

The previous prime is 746721167. The next prime is 746721257. The reversal of 746721256 is 652127647.

It is not an unprimeable number, because it can be changed into a prime (746721257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285016 + ... + 287623.

It is an arithmetic number, because the mean of its divisors is an integer number (88043400).

Almost surely, 2^746721256 is an apocalyptic number.

It is an amenable number.

746721256 is a deficient number, since it is larger than the sum of its proper divisors (661973144).

746721256 is a wasteful number, since it uses less digits than its factorization.

746721256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572808 (or 572804 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 746721256 is about 27326.2009068220. The cubic root of 746721256 is about 907.2343905677.

The spelling of 746721256 in words is "seven hundred forty-six million, seven hundred twenty-one thousand, two hundred fifty-six".