42865772 has 24 divisors (see below), whose sum is σ = 79806384. Its totient is φ = 20076032.

The previous prime is 42865769. The next prime is 42865807. The reversal of 42865772 is 27756824.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14048 + ... + 16824.

It is an arithmetic number, because the mean of its divisors is an integer number (3325266).

Almost surely, 2^42865772 is an apocalyptic number.

It is an amenable number.

42865772 is a deficient number, since it is larger than the sum of its proper divisors (36940612).

42865772 is a wasteful number, since it uses less digits than its factorization.

42865772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025 (or 3023 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 42865772 is about 6547.1957355802. The cubic root of 42865772 is about 349.9748879942.

The spelling of 42865772 in words is "forty-two million, eight hundred sixty-five thousand, seven hundred seventy-two".