74239180 has 12 divisors (see below), whose sum is σ = 155902320. Its totient is φ = 29695664.

The previous prime is 74239157. The next prime is 74239183. The reversal of 74239180 is 8193247.

It is a super-2 number, since 2×74239180² = 11022911694144800, which contains 22 as substring.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (74239183) 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 3 ways as a sum of consecutive naturals, for example, 1855960 + ... + 1855999.

It is an arithmetic number, because the mean of its divisors is an integer number (12991860).

Almost surely, 2^74239180 is an apocalyptic number.

It is an amenable number.

74239180 is an abundant number, since it is smaller than the sum of its proper divisors (81663140).

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

74239180 is a wasteful number, since it uses less digits than its factorization.

74239180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711968 (or 3711966 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 74239180 is about 8616.2161068534. The cubic root of 74239180 is about 420.2854824008.

The spelling of 74239180 in words is "seventy-four million, two hundred thirty-nine thousand, one hundred eighty".