978152330 has 16 divisors (see below), whose sum is σ = 1772337024. Its totient is φ = 388669200.

The previous prime is 978152321. The next prime is 978152359. The reversal of 978152330 is 33251879.

It is a Curzon 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, 322382 + ... + 325401.

It is an arithmetic number, because the mean of its divisors is an integer number (110771064).

Almost surely, 2^978152330 is an apocalyptic number.

978152330 is a deficient number, since it is larger than the sum of its proper divisors (794184694).

978152330 is a wasteful number, since it uses less digits than its factorization.

978152330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647941.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 978152330 is about 31275.4269355352. The cubic root of 978152330 is about 992.6637544480.

The spelling of 978152330 in words is "nine hundred seventy-eight million, one hundred fifty-two thousand, three hundred thirty".