74144940 has 48 divisors (see below), whose sum is σ = 208225248. Its totient is φ = 19713024.

The previous prime is 74144927. The next prime is 74144953. The reversal of 74144940 is 4944147.

It is an interprime number because it is at equal distance from previous prime (74144927) and next prime (74144953).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20724 + ... + 24036.

It is an arithmetic number, because the mean of its divisors is an integer number (4338026).

Almost surely, 2^74144940 is an apocalyptic number.

It is an amenable number.

74144940 is an abundant number, since it is smaller than the sum of its proper divisors (134080308).

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

74144940 is a wasteful number, since it uses less digits than its factorization.

74144940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698 (or 3696 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 74144940 is about 8610.7456123149. The cubic root of 74144940 is about 420.1075688194.

The spelling of 74144940 in words is "seventy-four million, one hundred forty-four thousand, nine hundred forty".