78232560 has 80 divisors (see below), whose sum is σ = 277172736. Its totient is φ = 17881344.

The previous prime is 78232559. The next prime is 78232571. The reversal of 78232560 is 6523287.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×78232560² = 12240666888307200, 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 15 ways as a sum of consecutive naturals, for example, 21604 + ... + 24963.

Almost surely, 2^78232560 is an apocalyptic number.

78232560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78232560 is an abundant number, since it is smaller than the sum of its proper divisors (198940176).

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

78232560 is a wasteful number, since it uses less digits than its factorization.

78232560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46590 (or 46584 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 78232560 is about 8844.9171844625. The cubic root of 78232560 is about 427.6900833838.

The spelling of 78232560 in words is "seventy-eight million, two hundred thirty-two thousand, five hundred sixty".