73878560 has 48 divisors (see below), whose sum is σ = 199475136. Its totient is φ = 25329408.

The previous prime is 73878557. The next prime is 73878613. The reversal of 73878560 is 6587837.

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, 31862 + ... + 34101.

It is an arithmetic number, because the mean of its divisors is an integer number (4155732).

Almost surely, 2^73878560 is an apocalyptic number.

73878560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73878560 is an abundant number, since it is smaller than the sum of its proper divisors (125596576).

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

73878560 is a wasteful number, since it uses less digits than its factorization.

73878560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65985 (or 65977 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 73878560 is about 8595.2638121235. The cubic root of 73878560 is about 419.6038592849.

The spelling of 73878560 in words is "seventy-three million, eight hundred seventy-eight thousand, five hundred sixty".