634224405240 has 96 divisors (see below), whose sum is σ = 2061386046720. Its totient is φ = 169113648384.

The previous prime is 634224405203. The next prime is 634224405263. The reversal of 634224405240 is 42504422436.

634224405240 is a `hidden beast` number, since 6 + 3 + 4 + 2 + 2 + 4 + 405 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 634224405195 and 634224405204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5262294 + ... + 5381466.

It is an arithmetic number, because the mean of its divisors is an integer number (21472771320).

Almost surely, 2^634224405240 is an apocalyptic number.

634224405240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

634224405240 is an abundant number, since it is smaller than the sum of its proper divisors (1427161641480).

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

634224405240 is a wasteful number, since it uses less digits than its factorization.

634224405240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133973 (or 133966 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 634224405240 its reverse (42504422436), we get a palindrome (676728827676).

The spelling of 634224405240 in words is "six hundred thirty-four billion, two hundred twenty-four million, four hundred five thousand, two hundred forty".