422440520 has 16 divisors (see below), whose sum is σ = 950491260. Its totient is φ = 168976192.

The previous prime is 422440519. The next prime is 422440549. The reversal of 422440520 is 25044224.

It can be written as a sum of positive squares in 2 ways, for example, as 418038916 + 4401604 = 20446^2 + 2098^2 .

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, 5280467 + ... + 5280546.

Almost surely, 2^422440520 is an apocalyptic number.

422440520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422440520 is an abundant number, since it is smaller than the sum of its proper divisors (528050740).

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

422440520 is a wasteful number, since it uses less digits than its factorization.

422440520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561024 (or 10561020 counting only the distinct ones).

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

The square root of 422440520 is about 20553.3578765125. The cubic root of 422440520 is about 750.3349733312.

Adding to 422440520 its reverse (25044224), we get a palindrome (447484744).

It can be divided in two parts, 4224 and 40520, that added together give a palindrome (44744).

The spelling of 422440520 in words is "four hundred twenty-two million, four hundred forty thousand, five hundred twenty".