13240405422 has 64 divisors (see below), whose sum is σ = 29603232000. Its totient is φ = 4386540384.

The previous prime is 13240405361. The next prime is 13240405427. The reversal of 13240405422 is 22450404231.

13240405422 is a `hidden beast` number, since 13 + 240 + 405 + 4 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240405427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8177329 + ... + 8178947.

It is an arithmetic number, because the mean of its divisors is an integer number (462550500).

Almost surely, 2^13240405422 is an apocalyptic number.

13240405422 is an abundant number, since it is smaller than the sum of its proper divisors (16362826578).

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

13240405422 is a wasteful number, since it uses less digits than its factorization.

13240405422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 13240405422 its reverse (22450404231), we get a palindrome (35690809653).

The spelling of 13240405422 in words is "thirteen billion, two hundred forty million, four hundred five thousand, four hundred twenty-two".