74081408 has 32 divisors (see below), whose sum is σ = 148027500. Its totient is φ = 36929536.

The previous prime is 74081347. The next prime is 74081443. The reversal of 74081408 is 80418047.

It can be written as a sum of positive squares in 2 ways, for example, as 70425664 + 3655744 = 8392^2 + 1912^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×74081408² = 10976110022524928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56828 + ... + 58116.

Almost surely, 2^74081408 is an apocalyptic number.

It is an amenable number.

74081408 is a deficient number, since it is larger than the sum of its proper divisors (73946092).

74081408 is a wasteful number, since it uses less digits than its factorization.

74081408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 74081408 is about 8607.0557102879. The cubic root of 74081408 is about 419.9875430924.

The spelling of 74081408 in words is "seventy-four million, eighty-one thousand, four hundred eight".