422504661 has 16 divisors (see below), whose sum is σ = 571750400. Its totient is φ = 277493040.

The previous prime is 422504657. The next prime is 422504669. The reversal of 422504661 is 166405224.

It is not a de Polignac number, because 422504661 - 2² = 422504657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422504669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58056 + ... + 64926.

It is an arithmetic number, because the mean of its divisors is an integer number (35734400).

Almost surely, 2^422504661 is an apocalyptic number.

It is an amenable number.

422504661 is a deficient number, since it is larger than the sum of its proper divisors (149245739).

422504661 is a wasteful number, since it uses less digits than its factorization.

422504661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7176.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 422504661 is about 20554.9181705985. The cubic root of 422504661 is about 750.3729469611.

Adding to 422504661 its reverse (166405224), we get a palindrome (588909885).

The spelling of 422504661 in words is "four hundred twenty-two million, five hundred four thousand, six hundred sixty-one".