422440401440 has 48 divisors (see below), whose sum is σ = 1003081591512. Its totient is φ = 168118401024.

The previous prime is 422440401421. The next prime is 422440401457. The reversal of 422440401440 is 44104044224.

It can be written as a sum of positive squares in 4 ways, for example, as 383522581264 + 38917820176 = 619292^2 + 197276^2 .

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, 6669629 + ... + 6732668.

Almost surely, 2^422440401440 is an apocalyptic number.

422440401440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422440401440 is an abundant number, since it is smaller than the sum of its proper divisors (580641190072).

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

422440401440 is a wasteful number, since it uses less digits than its factorization.

422440401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13402509 (or 13402501 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 422440401440 its reverse (44104044224), we get a palindrome (466544445664).

The spelling of 422440401440 in words is "four hundred twenty-two billion, four hundred forty million, four hundred one thousand, four hundred forty".