42644544 has 28 divisors (see below), whose sum is σ = 112830864. Its totient is φ = 14214784.

The previous prime is 42644543. The next prime is 42644573. The reversal of 42644544 is 44544624.

It is not an unprimeable number, because it can be changed into a prime (42644543) 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, 110862 + ... + 111245.

Almost surely, 2^42644544 is an apocalyptic number.

It is an amenable number.

42644544 is an abundant number, since it is smaller than the sum of its proper divisors (70186320).

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

42644544 is a wasteful number, since it uses less digits than its factorization.

42644544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222122 (or 222112 counting only the distinct ones).

The product of its digits is 61440, while the sum is 33.

The square root of 42644544 is about 6530.2790139473. The cubic root of 42644544 is about 349.3717819240.

The spelling of 42644544 in words is "forty-two million, six hundred forty-four thousand, five hundred forty-four".