74980780 has 36 divisors (see below), whose sum is σ = 183169728. Its totient is φ = 25707360.

The previous prime is 74980739. The next prime is 74980781. The reversal of 74980780 is 8708947.

It is a Smith number, since the sum of its digits (43) 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 (74980781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37276 + ... + 39235.

It is an arithmetic number, because the mean of its divisors is an integer number (5088048).

Almost surely, 2^74980780 is an apocalyptic number.

74980780 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

74980780 is an abundant number, since it is smaller than the sum of its proper divisors (108188948).

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

74980780 is a wasteful number, since it uses less digits than its factorization.

74980780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76534 (or 76525 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 74980780 is about 8659.1442995252. The cubic root of 74980780 is about 421.6803056269.

The spelling of 74980780 in words is "seventy-four million, nine hundred eighty thousand, seven hundred eighty".