746734128 has 60 divisors (see below), whose sum is σ = 2244019320. Its totient is φ = 213351936.

The previous prime is 746734117. The next prime is 746734147. The reversal of 746734128 is 821437647.

It is a super-2 number, since 2×746734128² = 1115223715839840768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 746734128.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156393 + ... + 161096.

It is an arithmetic number, because the mean of its divisors is an integer number (37400322).

Almost surely, 2^746734128 is an apocalyptic number.

It is an amenable number.

746734128 is an abundant number, since it is smaller than the sum of its proper divisors (1497285192).

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

746734128 is a wasteful number, since it uses less digits than its factorization.

746734128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317514 (or 317501 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 746734128 is about 27326.4364306801. The cubic root of 746734128 is about 907.2396035142.

The spelling of 746734128 in words is "seven hundred forty-six million, seven hundred thirty-four thousand, one hundred twenty-eight".