13399340 has 24 divisors (see below), whose sum is σ = 29363040. Its totient is φ = 5126528.

The previous prime is 13399327. The next prime is 13399343. The reversal of 13399340 is 4399331.

13399340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13399297 and 13399306.

It is not an unprimeable number, because it can be changed into a prime (13399343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14105 + ... + 15024.

It is an arithmetic number, because the mean of its divisors is an integer number (1223460).

Almost surely, 2^13399340 is an apocalyptic number.

13399340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13399340 is an abundant number, since it is smaller than the sum of its proper divisors (15963700).

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

13399340 is a wasteful number, since it uses less digits than its factorization.

13399340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29161 (or 29159 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 13399340 is about 3660.5108933044. The cubic root of 13399340 is about 237.5168741473.

Subtracting from 13399340 its reverse (4399331), we obtain a palindrome (9000009).

The spelling of 13399340 in words is "thirteen million, three hundred ninety-nine thousand, three hundred forty".