74397144 has 32 divisors (see below), whose sum is σ = 188352000. Its totient is φ = 24484512.

The previous prime is 74397101. The next prime is 74397149. The reversal of 74397144 is 44179347.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74397149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17724 + ... + 21515.

It is an arithmetic number, because the mean of its divisors is an integer number (5886000).

Almost surely, 2^74397144 is an apocalyptic number.

It is an amenable number.

74397144 is an abundant number, since it is smaller than the sum of its proper divisors (113954856).

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

74397144 is a wasteful number, since it uses less digits than its factorization.

74397144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39327 (or 39323 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 74397144 is about 8625.3779047645. The cubic root of 74397144 is about 420.5833616965.

The spelling of 74397144 in words is "seventy-four million, three hundred ninety-seven thousand, one hundred forty-four".