74559381 has 16 divisors (see below), whose sum is σ = 107552256. Its totient is φ = 45671616.

The previous prime is 74559349. The next prime is 74559383. The reversal of 74559381 is 18395547.

It is not a de Polignac number, because 74559381 - 2⁵ = 74559349 is a prime.

It is a super-2 number, since 2×74559381² = 11118202590206322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74559383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4411 + ... + 12983.

It is an arithmetic number, because the mean of its divisors is an integer number (6722016).

Almost surely, 2^74559381 is an apocalyptic number.

It is an amenable number.

74559381 is a deficient number, since it is larger than the sum of its proper divisors (32992875).

74559381 is a wasteful number, since it uses less digits than its factorization.

74559381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812.

The product of its digits is 151200, while the sum is 42.

The square root of 74559381 is about 8634.7774146182. Note that the first 3 decimals coincide. The cubic root of 74559381 is about 420.8888601786. Note that the first 4 decimals are identical.

It can be divided in two parts, 7455 and 9381, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 74559381 in words is "seventy-four million, five hundred fifty-nine thousand, three hundred eighty-one".