74356780 has 24 divisors (see below), whose sum is σ = 159959520. Its totient is φ = 29016960.

The previous prime is 74356771. The next prime is 74356781. The reversal of 74356780 is 8765347.

It is a super-3 number, since 3×74356780³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (74356781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44520 + ... + 46159.

It is an arithmetic number, because the mean of its divisors is an integer number (6664980).

Almost surely, 2^74356780 is an apocalyptic number.

It is an amenable number.

74356780 is an abundant number, since it is smaller than the sum of its proper divisors (85602740).

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

74356780 is a wasteful number, since it uses less digits than its factorization.

74356780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90729 (or 90727 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 74356780 is about 8623.0377478009. The cubic root of 74356780 is about 420.5072857568.

The spelling of 74356780 in words is "seventy-four million, three hundred fifty-six thousand, seven hundred eighty".