422023402 has 32 divisors (see below), whose sum is σ = 707374080. Its totient is φ = 187660800.

The previous prime is 422023391. The next prime is 422023403. The reversal of 422023402 is 204320224.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 422023402.

It is not an unprimeable number, because it can be changed into a prime (422023403) 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, 387703 + ... + 388789.

It is an arithmetic number, because the mean of its divisors is an integer number (22105440).

Almost surely, 2^422023402 is an apocalyptic number.

422023402 is a deficient number, since it is larger than the sum of its proper divisors (285350678).

422023402 is a wasteful number, since it uses less digits than its factorization.

422023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 422023402 is about 20543.2081720456. The cubic root of 422023402 is about 750.0879316162.

Adding to 422023402 its reverse (204320224), we get a palindrome (626343626).

The spelling of 422023402 in words is "four hundred twenty-two million, twenty-three thousand, four hundred two".