42644574 has 24 divisors (see below), whose sum is σ = 105596400. Its totient is φ = 12184128.

The previous prime is 42644573. The next prime is 42644579. The reversal of 42644574 is 47544624.

42644574 is a `hidden beast` number, since 4 + 2 + 644 + 5 + 7 + 4 = 666.

42644574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169099 + ... + 169350.

It is an arithmetic number, because the mean of its divisors is an integer number (4399850).

Almost surely, 2^42644574 is an apocalyptic number.

42644574 is an abundant number, since it is smaller than the sum of its proper divisors (62951826).

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

42644574 is a wasteful number, since it uses less digits than its factorization.

42644574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338464 (or 338461 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 42644574 is about 6530.2813109391. The cubic root of 42644574 is about 349.3718638505.

The spelling of 42644574 in words is "forty-two million, six hundred forty-four thousand, five hundred seventy-four".