42825644 has 12 divisors (see below), whose sum is σ = 75608904. Its totient is φ = 21223104.

The previous prime is 42825641. The next prime is 42825659. The reversal of 42825644 is 44652824.

It is not an unprimeable number, because it can be changed into a prime (42825641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46922 + ... + 47825.

It is an arithmetic number, because the mean of its divisors is an integer number (6300742).

Almost surely, 2^42825644 is an apocalyptic number.

It is an amenable number.

42825644 is a deficient number, since it is larger than the sum of its proper divisors (32783260).

42825644 is a wasteful number, since it uses less digits than its factorization.

42825644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94864 (or 94862 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

The square root of 42825644 is about 6544.1304999213. The cubic root of 42825644 is about 349.8656463918.

The spelling of 42825644 in words is "forty-two million, eight hundred twenty-five thousand, six hundred forty-four".