74404980 has 120 divisors (see below), whose sum is σ = 251437032. Its totient is φ = 18309888.

The previous prime is 74404973. The next prime is 74405021. The reversal of 74404980 is 8940447.

It can be written as a sum of positive squares in 4 ways, for example, as 6441444 + 67963536 = 2538^2 + 8244^2 .

It is a super-2 number, since 2×74404980² = 11072202097600800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19294 + ... + 22826.

Almost surely, 2^74404980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74404980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125718516).

74404980 is an abundant number, since it is smaller than the sum of its proper divisors (177032052).

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

74404980 is a wasteful number, since it uses less digits than its factorization.

74404980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567 (or 3556 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 74404980 is about 8625.8321337712. The cubic root of 74404980 is about 420.5981273866.

The spelling of 74404980 in words is "seventy-four million, four hundred four thousand, nine hundred eighty".