74497980 has 48 divisors (see below), whose sum is σ = 209026944. Its totient is φ = 19824960.

The previous prime is 74497979. The next prime is 74497987. The reversal of 74497980 is 8979447.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74497987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37615 + ... + 39545.

It is an arithmetic number, because the mean of its divisors is an integer number (4354728).

Almost surely, 2^74497980 is an apocalyptic number.

It is an amenable number.

74497980 is an abundant number, since it is smaller than the sum of its proper divisors (134528964).

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

74497980 is a wasteful number, since it uses less digits than its factorization.

74497980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 74497980 is about 8631.2212345647. The cubic root of 74497980 is about 420.7732919167.

The spelling of 74497980 in words is "seventy-four million, four hundred ninety-seven thousand, nine hundred eighty".