74101980 has 48 divisors (see below), whose sum is σ = 219693600. Its totient is φ = 18597888.

The previous prime is 74101967. The next prime is 74101981. The reversal of 74101980 is 8910147.

It is a super-2 number, since 2×74101980² = 10982206879840800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74101981) 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, 35305 + ... + 37344.

It is an arithmetic number, because the mean of its divisors is an integer number (4576950).

Almost surely, 2^74101980 is an apocalyptic number.

It is an amenable number.

74101980 is an abundant number, since it is smaller than the sum of its proper divisors (145591620).

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

74101980 is a wasteful number, since it uses less digits than its factorization.

74101980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72678 (or 72676 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 74101980 is about 8608.2506933755. The cubic root of 74101980 is about 420.0264155721.

The spelling of 74101980 in words is "seventy-four million, one hundred one thousand, nine hundred eighty".