422400234 has 64 divisors (see below), whose sum is σ = 902799360. Its totient is φ = 131544000.

The previous prime is 422400211. The next prime is 422400239. The reversal of 422400234 is 432004224.

It is a self number, because there is not a number n which added to its sum of digits gives 422400234.

It is not an unprimeable number, because it can be changed into a prime (422400239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 669099 + ... + 669729.

It is an arithmetic number, because the mean of its divisors is an integer number (14106240).

Almost surely, 2^422400234 is an apocalyptic number.

422400234 is an abundant number, since it is smaller than the sum of its proper divisors (480399126).

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

422400234 is a wasteful number, since it uses less digits than its factorization.

422400234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787.

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

The square root of 422400234 is about 20552.3778186369. The cubic root of 422400234 is about 750.3111206985.

Adding to 422400234 its reverse (432004224), we get a palindrome (854404458).

The spelling of 422400234 in words is "four hundred twenty-two million, four hundred thousand, two hundred thirty-four".