13402245 has 16 divisors (see below), whose sum is σ = 21490560. Its totient is φ = 7132224.

The previous prime is 13402237. The next prime is 13402247. The reversal of 13402245 is 54220431.

It is not a de Polignac number, because 13402245 - 2³ = 13402237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10291 + ... + 11519.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160).

Almost surely, 2^13402245 is an apocalyptic number.

13402245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13402245 is a deficient number, since it is larger than the sum of its proper divisors (8088315).

13402245 is a wasteful number, since it uses less digits than its factorization.

13402245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13402245 is about 3660.9076743343. The cubic root of 13402245 is about 237.5340375962.

Adding to 13402245 its reverse (54220431), we get a palindrome (67622676).

The spelling of 13402245 in words is "thirteen million, four hundred two thousand, two hundred forty-five".