13402340 has 24 divisors (see below), whose sum is σ = 32165952. Its totient is φ = 4595040.

The previous prime is 13402339. The next prime is 13402373. The reversal of 13402340 is 4320431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47726 + ... + 48005.

It is an arithmetic number, because the mean of its divisors is an integer number (1340248).

Almost surely, 2^13402340 is an apocalyptic number.

13402340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13402340 is an abundant number, since it is smaller than the sum of its proper divisors (18763612).

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

13402340 is a wasteful number, since it uses less digits than its factorization.

13402340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95747 (or 95745 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13402340 is about 3660.9206492357. The cubic root of 13402340 is about 237.5345988375.

Adding to 13402340 its reverse (4320431), we get a palindrome (17722771).

The spelling of 13402340 in words is "thirteen million, four hundred two thousand, three hundred forty".