422023020 has 48 divisors (see below), whose sum is σ = 1190312928. Its totient is φ = 111715840.

The previous prime is 422022983. The next prime is 422023031. The reversal of 422023020 is 20320224.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17451 + ... + 33890.

It is an arithmetic number, because the mean of its divisors is an integer number (24798186).

Almost surely, 2^422023020 is an apocalyptic number.

It is an amenable number.

422023020 is an abundant number, since it is smaller than the sum of its proper divisors (768289908).

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

422023020 is a wasteful number, since it uses less digits than its factorization.

422023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51490 (or 51488 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 422023020 is about 20543.1988745667. The cubic root of 422023020 is about 750.0877052989.

Adding to 422023020 its reverse (20320224), we get a palindrome (442343244).

The spelling of 422023020 in words is "four hundred twenty-two million, twenty-three thousand, twenty".