74197774 has 48 divisors (see below), whose sum is σ = 137269728. Its totient is φ = 29450304.

The previous prime is 74197771. The next prime is 74197811. The reversal of 74197774 is 47779147.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74197771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267724 + ... + 268000.

It is an arithmetic number, because the mean of its divisors is an integer number (2859786).

Almost surely, 2^74197774 is an apocalyptic number.

74197774 is a deficient number, since it is larger than the sum of its proper divisors (63071954).

74197774 is a wasteful number, since it uses less digits than its factorization.

74197774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 358 counting only the distinct ones).

The product of its digits is 345744, while the sum is 46.

The square root of 74197774 is about 8613.8129768413. The cubic root of 74197774 is about 420.2073314971.

The spelling of 74197774 in words is "seventy-four million, one hundred ninety-seven thousand, seven hundred seventy-four".