422404440 has 64 divisors (see below), whose sum is σ = 1341761760. Its totient is φ = 106014720.

The previous prime is 422404439. The next prime is 422404441. The reversal of 422404440 is 44404224.

It is an interprime number because it is at equal distance from previous prime (422404439) and next prime (422404441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 422404440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422404441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101491 + ... + 105570.

Almost surely, 2^422404440 is an apocalyptic number.

422404440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422404440 is an abundant number, since it is smaller than the sum of its proper divisors (919357320).

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

422404440 is a wasteful number, since it uses less digits than its factorization.

422404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207092 (or 207088 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 422404440 is about 20552.4801423089. The cubic root of 422404440 is about 750.3136110681.

Adding to 422404440 its reverse (44404224), we get a palindrome (466808664).

The spelling of 422404440 in words is "four hundred twenty-two million, four hundred four thousand, four hundred forty".