74382540 has 48 divisors (see below), whose sum is σ = 208884480. Its totient is φ = 19776960.

The previous prime is 74382523. The next prime is 74382557. The reversal of 74382540 is 4528347.

It is an interprime number because it is at equal distance from previous prime (74382523) and next prime (74382557).

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, 21105 + ... + 24375.

It is an arithmetic number, because the mean of its divisors is an integer number (4351760).

Almost surely, 2^74382540 is an apocalyptic number.

It is an amenable number.

74382540 is an abundant number, since it is smaller than the sum of its proper divisors (134501940).

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

74382540 is a wasteful number, since it uses less digits than its factorization.

74382540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662 (or 3660 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 74382540 is about 8624.5312916123. The cubic root of 74382540 is about 420.5558400246. Note that the first 3 decimals are identical.

The spelling of 74382540 in words is "seventy-four million, three hundred eighty-two thousand, five hundred forty".