42622907 has 4 divisors (see below), whose sum is σ = 43136520. Its totient is φ = 42109296.

The previous prime is 42622891. The next prime is 42622919. The reversal of 42622907 is 70922624.

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

It is a cyclic number.

It is not a de Polignac number, because 42622907 - 2⁴ = 42622891 is a prime.

It is a super-2 number, since 2×42622907² = 3633424402261298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42622967) 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, 256682 + ... + 256847.

It is an arithmetic number, because the mean of its divisors is an integer number (10784130).

Almost surely, 2^42622907 is an apocalyptic number.

42622907 is a deficient number, since it is larger than the sum of its proper divisors (513613).

42622907 is an equidigital number, since it uses as much as digits as its factorization.

42622907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513612.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 42622907 is about 6528.6221364083. The cubic root of 42622907 is about 349.3126838122.

The spelling of 42622907 in words is "forty-two million, six hundred twenty-two thousand, nine hundred seven".