422404040 has 32 divisors (see below), whose sum is σ = 970634880. Its totient is φ = 165365952.

The previous prime is 422404033. The next prime is 422404079. The reversal of 422404040 is 40404224.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110462 + ... + 114221.

It is an arithmetic number, because the mean of its divisors is an integer number (30332340).

Almost surely, 2^422404040 is an apocalyptic number.

422404040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422404040 is an abundant number, since it is smaller than the sum of its proper divisors (548230840).

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

422404040 is a wasteful number, since it uses less digits than its factorization.

422404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224741 (or 224737 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 422404040 is about 20552.4704111209. The cubic root of 422404040 is about 750.3133742291.

Adding to 422404040 its reverse (40404224), we get a palindrome (462808264).

The spelling of 422404040 in words is "four hundred twenty-two million, four hundred four thousand, forty".