42664772 has 12 divisors (see below), whose sum is σ = 76400016. Its totient is φ = 20836200.

The previous prime is 42664753. The next prime is 42664813. The reversal of 42664772 is 27746624.

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, 123854 + ... + 124197.

It is an arithmetic number, because the mean of its divisors is an integer number (6366668).

Almost surely, 2^42664772 is an apocalyptic number.

It is an amenable number.

42664772 is a deficient number, since it is larger than the sum of its proper divisors (33735244).

42664772 is a wasteful number, since it uses less digits than its factorization.

42664772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248098 (or 248096 counting only the distinct ones).

The product of its digits is 112896, while the sum is 38.

The square root of 42664772 is about 6531.8276156065. The cubic root of 42664772 is about 349.4270134936.

The spelling of 42664772 in words is "forty-two million, six hundred sixty-four thousand, seven hundred seventy-two".