422402420 has 24 divisors (see below), whose sum is σ = 967686048. Its totient is φ = 153600800.

The previous prime is 422402353. The next prime is 422402441. The reversal of 422402420 is 24204224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 422402392 and 422402401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959786 + ... + 960225.

It is an arithmetic number, because the mean of its divisors is an integer number (40320252).

Almost surely, 2^422402420 is an apocalyptic number.

It is an amenable number.

422402420 is an abundant number, since it is smaller than the sum of its proper divisors (545283628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422402420 is a wasteful number, since it uses less digits than its factorization.

422402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920031 (or 1920029 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 422402420 is about 20552.4309997625. The cubic root of 422402420 is about 750.3124150296.

Adding to 422402420 its reverse (24204224), we get a palindrome (446606644).

The spelling of 422402420 in words is "four hundred twenty-two million, four hundred two thousand, four hundred twenty".