13434531240 has 64 divisors (see below), whose sum is σ = 43403875200. Its totient is φ = 3306961152.

The previous prime is 13434531157. The next prime is 13434531259. The reversal of 13434531240 is 4213543431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13434531198 and 13434531207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4304380 + ... + 4307499.

It is an arithmetic number, because the mean of its divisors is an integer number (678185550).

Almost surely, 2^13434531240 is an apocalyptic number.

13434531240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13434531240 is an abundant number, since it is smaller than the sum of its proper divisors (29969343960).

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

13434531240 is a wasteful number, since it uses less digits than its factorization.

13434531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8611906 (or 8611902 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 13434531240 in words is "thirteen billion, four hundred thirty-four million, five hundred thirty-one thousand, two hundred forty".