74432180 has 24 divisors (see below), whose sum is σ = 156560040. Its totient is φ = 29724800.

The previous prime is 74432173. The next prime is 74432191. The reversal of 74432180 is 8123447.

It can be written as a sum of positive squares in 4 ways, for example, as 1909924 + 72522256 = 1382^2 + 8516^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11366 + ... + 16674.

It is an arithmetic number, because the mean of its divisors is an integer number (6523335).

Almost surely, 2^74432180 is an apocalyptic number.

It is an amenable number.

74432180 is an abundant number, since it is smaller than the sum of its proper divisors (82127860).

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

74432180 is a wasteful number, since it uses less digits than its factorization.

74432180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019 (or 6017 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 74432180 is about 8627.4086491831. The cubic root of 74432180 is about 420.6493733977.

The spelling of 74432180 in words is "seventy-four million, four hundred thirty-two thousand, one hundred eighty".