13240401434 has 8 divisors (see below), whose sum is σ = 21388340820. Its totient is φ = 6110954496.

The previous prime is 13240401371. The next prime is 13240401487. The reversal of 13240401434 is 43410404231.

It can be written as a sum of positive squares in 2 ways, for example, as 12892467025 + 347934409 = 113545^2 + 18653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 509246209 = 13240401434 / (1 + 3 + 2 + 4 + 0 + 4 + 0 + 1 + 4 + 3 + 4).

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, 254623079 + ... + 254623130.

Almost surely, 2^13240401434 is an apocalyptic number.

13240401434 is a deficient number, since it is larger than the sum of its proper divisors (8147939386).

13240401434 is a wasteful number, since it uses less digits than its factorization.

13240401434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509246224.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13240401434 its reverse (43410404231), we get a palindrome (56650805665).

The spelling of 13240401434 in words is "thirteen billion, two hundred forty million, four hundred one thousand, four hundred thirty-four".