74516568 has 32 divisors (see below), whose sum is σ = 212904960. Its totient is φ = 21290400.

The previous prime is 74516551. The next prime is 74516581. The reversal of 74516568 is 86561547.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221608 + ... + 221943.

It is an arithmetic number, because the mean of its divisors is an integer number (6653280).

Almost surely, 2^74516568 is an apocalyptic number.

It is an amenable number.

74516568 is an abundant number, since it is smaller than the sum of its proper divisors (138388392).

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

74516568 is a wasteful number, since it uses less digits than its factorization.

74516568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443567 (or 443563 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 74516568 is about 8632.2979559327. The cubic root of 74516568 is about 420.8082847381.

The spelling of 74516568 in words is "seventy-four million, five hundred sixteen thousand, five hundred sixty-eight".