13402474 has 8 divisors (see below), whose sum is σ = 20138148. Its totient is φ = 6689760.

The previous prime is 13402471. The next prime is 13402513. The reversal of 13402474 is 47420431.

It can be written as a sum of positive squares in 2 ways, for example, as 11730625 + 1671849 = 3425^2 + 1293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13402471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4197 + ... + 6664.

Almost surely, 2^13402474 is an apocalyptic number.

13402474 is a deficient number, since it is larger than the sum of its proper divisors (6735674).

13402474 is a wasteful number, since it uses less digits than its factorization.

13402474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11480.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 13402474 is about 3660.9389505972. The cubic root of 13402474 is about 237.5353904787.

The spelling of 13402474 in words is "thirteen million, four hundred two thousand, four hundred seventy-four".