422801928 has 24 divisors (see below), whose sum is σ = 1145088750. Its totient is φ = 140933952.

The previous prime is 422801909. The next prime is 422801941. The reversal of 422801928 is 829108224.

It can be written as a sum of positive squares in only one way, i.e., 422795844 + 6084 = 20562^2 + 78^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×422801928² = 357522940641034368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 422801892 and 422801901.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2936053 + ... + 2936196.

Almost surely, 2^422801928 is an apocalyptic number.

It is an amenable number.

422801928 is an abundant number, since it is smaller than the sum of its proper divisors (722286822).

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

422801928 is a wasteful number, since it uses less digits than its factorization.

422801928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872261 (or 5872254 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 422801928 is about 20562.1479422749. The cubic root of 422801928 is about 750.5488888634.

The spelling of 422801928 in words is "four hundred twenty-two million, eight hundred one thousand, nine hundred twenty-eight".