42564622 has 4 divisors (see below), whose sum is σ = 63846936. Its totient is φ = 21282310.

The previous prime is 42564611. The next prime is 42564659. The reversal of 42564622 is 22646524.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10641154 + ... + 10641157.

It is an arithmetic number, because the mean of its divisors is an integer number (15961734).

Almost surely, 2^42564622 is an apocalyptic number.

42564622 is a deficient number, since it is larger than the sum of its proper divisors (21282314).

42564622 is a wasteful number, since it uses less digits than its factorization.

42564622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21282313.

The product of its digits is 23040, while the sum is 31.

The square root of 42564622 is about 6524.1568037563. The cubic root of 42564622 is about 349.1533878013.

The spelling of 42564622 in words is "forty-two million, five hundred sixty-four thousand, six hundred twenty-two".