422123404 has 12 divisors (see below), whose sum is σ = 762545728. Its totient is φ = 204253200.

The previous prime is 422123327. The next prime is 422123411. The reversal of 422123404 is 404321224.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701987 + ... + 1702234.

Almost surely, 2^422123404 is an apocalyptic number.

It is an amenable number.

422123404 is a deficient number, since it is larger than the sum of its proper divisors (340422324).

422123404 is a wasteful number, since it uses less digits than its factorization.

422123404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404256 (or 3404254 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 422123404 is about 20545.6419709874. The cubic root of 422123404 is about 750.1471734884.

Adding to 422123404 its reverse (404321224), we get a palindrome (826444628).

The spelling of 422123404 in words is "four hundred twenty-two million, one hundred twenty-three thousand, four hundred four".