74008144 has 20 divisors (see below), whose sum is σ = 163875424. Its totient is φ = 31717728.

The previous prime is 74008093. The next prime is 74008147. The reversal of 74008144 is 44180047.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74008147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330282 + ... + 330505.

Almost surely, 2^74008144 is an apocalyptic number.

It is an amenable number.

74008144 is an abundant number, since it is smaller than the sum of its proper divisors (89867280).

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

74008144 is a wasteful number, since it uses less digits than its factorization.

74008144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660802 (or 660796 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 74008144 is about 8602.7986144045. The cubic root of 74008144 is about 419.8490462808.

The spelling of 74008144 in words is "seventy-four million, eight thousand, one hundred forty-four".