422221426 has 32 divisors (see below), whose sum is σ = 726713856. Its totient is φ = 182208000.

The previous prime is 422221421. The next prime is 422221427. The reversal of 422221426 is 624122224.

It is a self number, because there is not a number n which added to its sum of digits gives 422221426.

It is not an unprimeable number, because it can be changed into a prime (422221421) 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, 30306 + ... + 41986.

It is an arithmetic number, because the mean of its divisors is an integer number (22709808).

Almost surely, 2^422221426 is an apocalyptic number.

422221426 is a deficient number, since it is larger than the sum of its proper divisors (304492430).

422221426 is a wasteful number, since it uses less digits than its factorization.

422221426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11778.

The product of its digits is 3072, while the sum is 25.

The square root of 422221426 is about 20548.0273019091. The cubic root of 422221426 is about 750.2052333154.

The spelling of 422221426 in words is "four hundred twenty-two million, two hundred twenty-one thousand, four hundred twenty-six".