74395740 has 48 divisors (see below), whose sum is σ = 220564512. Its totient is φ = 18671616.

The previous prime is 74395721. The next prime is 74395781. The reversal of 74395740 is 4759347.

It is a super-2 number, since 2×74395740² = 11069452260295200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35449 + ... + 37488.

It is an arithmetic number, because the mean of its divisors is an integer number (4595094).

Almost surely, 2^74395740 is an apocalyptic number.

It is an amenable number.

74395740 is an abundant number, since it is smaller than the sum of its proper divisors (146168772).

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

74395740 is a wasteful number, since it uses less digits than its factorization.

74395740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72966 (or 72964 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 74395740 is about 8625.2965166422. The cubic root of 74395740 is about 420.5807159733.

The spelling of 74395740 in words is "seventy-four million, three hundred ninety-five thousand, seven hundred forty".