74757480 has 64 divisors (see below), whose sum is σ = 256314240. Its totient is φ = 17087232.

The previous prime is 74757479. The next prime is 74757481. The reversal of 74757480 is 8475747.

It is an interprime number because it is at equal distance from previous prime (74757479) and next prime (74757481).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (74757481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43659 + ... + 45338.

It is an arithmetic number, because the mean of its divisors is an integer number (4004910).

Almost surely, 2^74757480 is an apocalyptic number.

74757480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74757480 is an abundant number, since it is smaller than the sum of its proper divisors (181556760).

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

74757480 is a wasteful number, since it uses less digits than its factorization.

74757480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89018 (or 89014 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 74757480 is about 8646.2408016432. The cubic root of 74757480 is about 421.2612878425.

The spelling of 74757480 in words is "seventy-four million, seven hundred fifty-seven thousand, four hundred eighty".