74627980 has 72 divisors (see below), whose sum is σ = 183629376. Its totient is φ = 25401600.

The previous prime is 74627947. The next prime is 74627981. The reversal of 74627980 is 8972647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74627981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265440 + ... + 265720.

It is an arithmetic number, because the mean of its divisors is an integer number (2550408).

Almost surely, 2^74627980 is an apocalyptic number.

74627980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74627980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91814688).

74627980 is an abundant number, since it is smaller than the sum of its proper divisors (109001396).

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

74627980 is a wasteful number, since it uses less digits than its factorization.

74627980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 74627980 is about 8638.7487519895. The cubic root of 74627980 is about 421.0179014172.

The spelling of 74627980 in words is "seventy-four million, six hundred twenty-seven thousand, nine hundred eighty".