42668732 has 12 divisors (see below), whose sum is σ = 74723040. Its totient is φ = 21319296.

The previous prime is 42668729. The next prime is 42668761. The reversal of 42668732 is 23786624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4733 + ... + 10379.

It is an arithmetic number, because the mean of its divisors is an integer number (6226920).

Almost surely, 2^42668732 is an apocalyptic number.

It is an amenable number.

42668732 is a deficient number, since it is larger than the sum of its proper divisors (32054308).

42668732 is a wasteful number, since it uses less digits than its factorization.

42668732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7540 (or 7538 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 42668732 is about 6532.1307396592. The cubic root of 42668732 is about 349.4378240375.

The spelling of 42668732 in words is "forty-two million, six hundred sixty-eight thousand, seven hundred thirty-two".