978630128 has 40 divisors (see below), whose sum is σ = 2261188608. Its totient is φ = 401176512.

The previous prime is 978630119. The next prime is 978630161. The reversal of 978630128 is 821036879.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187376 + ... + 192527.

Almost surely, 2^978630128 is an apocalyptic number.

It is an amenable number.

978630128 is an abundant number, since it is smaller than the sum of its proper divisors (1282558480).

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

978630128 is a wasteful number, since it uses less digits than its factorization.

978630128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379941 (or 379935 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 978630128 is about 31283.0645557624. The cubic root of 978630128 is about 992.8253569364.

The spelling of 978630128 in words is "nine hundred seventy-eight million, six hundred thirty thousand, one hundred twenty-eight".