978310128 has 40 divisors (see below), whose sum is σ = 2614453200. Its totient is φ = 314857984.

The previous prime is 978310097. The next prime is 978310141. The reversal of 978310128 is 821013879.

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, 350013 + ... + 352796.

It is an arithmetic number, because the mean of its divisors is an integer number (65361330).

Almost surely, 2^978310128 is an apocalyptic number.

It is an amenable number.

978310128 is an abundant number, since it is smaller than the sum of its proper divisors (1636143072).

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

978310128 is a wasteful number, since it uses less digits than its factorization.

978310128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702849 (or 702843 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 978310128 is about 31277.9495491632. The cubic root of 978310128 is about 992.7171312510.

The spelling of 978310128 in words is "nine hundred seventy-eight million, three hundred ten thousand, one hundred twenty-eight".