74718780 has 48 divisors (see below), whose sum is σ = 212768640. Its totient is φ = 19586368.

The previous prime is 74718719. The next prime is 74718781. The reversal of 74718780 is 8781747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74718781) 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 15 ways as a sum of consecutive naturals, for example, 7014 + ... + 14093.

It is an arithmetic number, because the mean of its divisors is an integer number (4432680).

Almost surely, 2^74718780 is an apocalyptic number.

It is an amenable number.

74718780 is an abundant number, since it is smaller than the sum of its proper divisors (138049860).

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

74718780 is a wasteful number, since it uses less digits than its factorization.

74718780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21178 (or 21176 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 74718780 is about 8644.0025451176. The cubic root of 74718780 is about 421.1885832969.

The spelling of 74718780 in words is "seventy-four million, seven hundred eighteen thousand, seven hundred eighty".