13402445 has 16 divisors (see below), whose sum is σ = 19180800. Its totient is φ = 8790144.

The previous prime is 13402427. The next prime is 13402453. The reversal of 13402445 is 54420431.

It is a cyclic number.

It is not a de Polignac number, because 13402445 - 2⁸ = 13402189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 13402445.

It is a congruent number.

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, 7520 + ... + 9129.

It is an arithmetic number, because the mean of its divisors is an integer number (1198800).

Almost surely, 2^13402445 is an apocalyptic number.

It is an amenable number.

13402445 is a deficient number, since it is larger than the sum of its proper divisors (5778355).

13402445 is a wasteful number, since it uses less digits than its factorization.

13402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16684.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 13402445 is about 3660.9349898626. The cubic root of 13402445 is about 237.5352191538.

Adding to 13402445 its reverse (54420431), we get a palindrome (67822876).

The spelling of 13402445 in words is "thirteen million, four hundred two thousand, four hundred forty-five".