422838528 has 72 divisors (see below), whose sum is σ = 1286150208. Its totient is φ = 120809472.

The previous prime is 422838517. The next prime is 422838547. The reversal of 422838528 is 825838224.

It is a super-2 number, since 2×422838528² = 357584841522413568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 422838528.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33951 + ... + 44702.

Almost surely, 2^422838528 is an apocalyptic number.

422838528 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

422838528 is an abundant number, since it is smaller than the sum of its proper divisors (863311680).

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

422838528 is an equidigital number, since it uses as much as digits as its factorization.

422838528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78679 (or 78665 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 422838528 is about 20563.0379078579. The cubic root of 422838528 is about 750.5705454161.

The spelling of 422838528 in words is "four hundred twenty-two million, eight hundred thirty-eight thousand, five hundred twenty-eight".