422042615 has 4 divisors (see below), whose sum is σ = 506451144. Its totient is φ = 337634088.

The previous prime is 422042513. The next prime is 422042623. The reversal of 422042615 is 516240224.

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 422042615 - 2¹⁶ = 421977079 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 42204257 + ... + 42204266.

It is an arithmetic number, because the mean of its divisors is an integer number (126612786).

Almost surely, 2^422042615 is an apocalyptic number.

422042615 is a deficient number, since it is larger than the sum of its proper divisors (84408529).

422042615 is an equidigital number, since it uses as much as digits as its factorization.

422042615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84408528.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 422042615 is about 20543.6757908608. The cubic root of 422042615 is about 750.0993142557.

Adding to 422042615 its reverse (516240224), we get a palindrome (938282839).

The spelling of 422042615 in words is "four hundred twenty-two million, forty-two thousand, six hundred fifteen".