422808440 has 16 divisors (see below), whose sum is σ = 951319080. Its totient is φ = 169123360.

The previous prime is 422808439. The next prime is 422808443. The reversal of 422808440 is 44808224.

It is a junction number, because it is equal to n+sod(n) for n = 422808397 and 422808406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422808443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5285066 + ... + 5285145.

Almost surely, 2^422808440 is an apocalyptic number.

422808440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422808440 is an abundant number, since it is smaller than the sum of its proper divisors (528510640).

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

422808440 is a wasteful number, since it uses less digits than its factorization.

422808440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570222 (or 10570218 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 422808440 is about 20562.3062908809. The cubic root of 422808440 is about 750.5527421644.

The spelling of 422808440 in words is "four hundred twenty-two million, eight hundred eight thousand, four hundred forty".