422003442 has 32 divisors (see below), whose sum is σ = 968850432. Its totient is φ = 120038544.

The previous prime is 422003431. The next prime is 422003443. The reversal of 422003442 is 244300224.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (422003443) 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, 12598 + ... + 31665.

It is an arithmetic number, because the mean of its divisors is an integer number (30276576).

Almost surely, 2^422003442 is an apocalyptic number.

422003442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

422003442 is an abundant number, since it is smaller than the sum of its proper divisors (546846990).

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

422003442 is a wasteful number, since it uses less digits than its factorization.

422003442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44502.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 422003442 is about 20542.7223609725. The cubic root of 422003442 is about 750.0761060547.

Adding to 422003442 its reverse (244300224), we get a palindrome (666303666).

The spelling of 422003442 in words is "four hundred twenty-two million, three thousand, four hundred forty-two".