422800440 has 32 divisors (see below), whose sum is σ = 1268401680. Its totient is φ = 112746752.

The previous prime is 422800429. The next prime is 422800459. The reversal of 422800440 is 44008224.

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 422800440.

It is a congruent number.

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, 1761549 + ... + 1761788.

Almost surely, 2^422800440 is an apocalyptic number.

422800440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422800440 is an abundant number, since it is smaller than the sum of its proper divisors (845601240).

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

422800440 is a wasteful number, since it uses less digits than its factorization.

422800440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523351 (or 3523347 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 422800440 is about 20562.1117592527. Note that the first 3 decimals coincide. The cubic root of 422800440 is about 750.5480083738.

Adding to 422800440 its reverse (44008224), we get a palindrome (466808664).

The spelling of 422800440 in words is "four hundred twenty-two million, eight hundred thousand, four hundred forty".