42584642 has 8 divisors (see below), whose sum is σ = 64246716. Its totient is φ = 21169072.

The previous prime is 42584639. The next prime is 42584651. The reversal of 42584642 is 24648524.

It can be written as a sum of positive squares in 2 ways, for example, as 40844881 + 1739761 = 6391^2 + 1319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 61193 + ... + 61884.

Almost surely, 2^42584642 is an apocalyptic number.

42584642 is a deficient number, since it is larger than the sum of its proper divisors (21662074).

42584642 is a wasteful number, since it uses less digits than its factorization.

42584642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123252.

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

The square root of 42584642 is about 6525.6909212742. The cubic root of 42584642 is about 349.2081199151.

The spelling of 42584642 in words is "forty-two million, five hundred eighty-four thousand, six hundred forty-two".