42642622 has 8 divisors (see below), whose sum is σ = 69778872. Its totient is φ = 19383000.

The previous prime is 42642617. The next prime is 42642623. The reversal of 42642622 is 22624624.

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

It is a super-2 number, since 2×42642622² = 3636786422069768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42642623) 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, 969129 + ... + 969172.

It is an arithmetic number, because the mean of its divisors is an integer number (8722359).

Almost surely, 2^42642622 is an apocalyptic number.

42642622 is a deficient number, since it is larger than the sum of its proper divisors (27136250).

42642622 is a wasteful number, since it uses less digits than its factorization.

42642622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938314.

The product of its digits is 9216, while the sum is 28.

The square root of 42642622 is about 6530.1318516551. The cubic root of 42642622 is about 349.3665330880.

It can be divided in two parts, 42642 and 622, that added together give a square (43264 = 208²).

The spelling of 42642622 in words is "forty-two million, six hundred forty-two thousand, six hundred twenty-two".