78932280 has 64 divisors (see below), whose sum is σ = 270627840. Its totient is φ = 18041472.

The previous prime is 78932279. The next prime is 78932291. The reversal of 78932280 is 8223987.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46144 + ... + 47823.

It is an arithmetic number, because the mean of its divisors is an integer number (4228560).

Almost surely, 2^78932280 is an apocalyptic number.

78932280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78932280 is an abundant number, since it is smaller than the sum of its proper divisors (191695560).

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

78932280 is a wasteful number, since it uses less digits than its factorization.

78932280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93988 (or 93984 counting only the distinct ones).

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

The square root of 78932280 is about 8884.3840529324. The cubic root of 78932280 is about 428.9614018664.

The spelling of 78932280 in words is "seventy-eight million, nine hundred thirty-two thousand, two hundred eighty".