74457380 has 24 divisors (see below), whose sum is σ = 156569280. Its totient is φ = 29743200.

The previous prime is 74457373. The next prime is 74457389. The reversal of 74457380 is 8375447.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (74457389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16355 + ... + 20405.

It is an arithmetic number, because the mean of its divisors is an integer number (6523720).

Almost surely, 2^74457380 is an apocalyptic number.

It is an amenable number.

74457380 is an abundant number, since it is smaller than the sum of its proper divisors (82111900).

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

74457380 is a wasteful number, since it uses less digits than its factorization.

74457380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4979 (or 4977 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 74457380 is about 8628.8689873007. The cubic root of 74457380 is about 420.6968401795.

The spelling of 74457380 in words is "seventy-four million, four hundred fifty-seven thousand, three hundred eighty".