72946128 has 20 divisors (see below), whose sum is σ = 188444288. Its totient is φ = 24315360.

The previous prime is 72946063. The next prime is 72946141. The reversal of 72946128 is 82164927.

It is a super-2 number, since 2×72946128² = 10642275180384768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759808 + ... + 759903.

Almost surely, 2^72946128 is an apocalyptic number.

It is an amenable number.

72946128 is an abundant number, since it is smaller than the sum of its proper divisors (115498160).

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

72946128 is a wasteful number, since it uses less digits than its factorization.

72946128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519722 (or 1519716 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 72946128 is about 8540.8505431251. The cubic root of 72946128 is about 417.8310864105.

The spelling of 72946128 in words is "seventy-two million, nine hundred forty-six thousand, one hundred twenty-eight".