422205440 has 48 divisors (see below), whose sum is σ = 1013070240. Its totient is φ = 168878080.

The previous prime is 422205439. The next prime is 422205451. The reversal of 422205440 is 44502224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10376 + ... + 30855.

It is an arithmetic number, because the mean of its divisors is an integer number (21105630).

Almost surely, 2^422205440 is an apocalyptic number.

422205440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422205440 is an abundant number, since it is smaller than the sum of its proper divisors (590864800).

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

422205440 is an equidigital number, since it uses as much as digits as its factorization.

422205440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41258 (or 41238 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 422205440 is about 20547.6383071145. The cubic root of 422205440 is about 750.1957651932.

Adding to 422205440 its reverse (44502224), we get a palindrome (466707664).

The spelling of 422205440 in words is "four hundred twenty-two million, two hundred five thousand, four hundred forty".