13402682 has 4 divisors (see below), whose sum is σ = 20104026. Its totient is φ = 6701340.

The previous prime is 13402679. The next prime is 13402687. The reversal of 13402682 is 28620431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28620431 = 7 ⋅4088633.

It can be written as a sum of positive squares in only one way, i.e., 12823561 + 579121 = 3581^2 + 761^2 .

It is not an unprimeable number, because it can be changed into a prime (13402687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350669 + ... + 3350672.

Almost surely, 2^13402682 is an apocalyptic number.

13402682 is a deficient number, since it is larger than the sum of its proper divisors (6701344).

13402682 is an equidigital number, since it uses as much as digits as its factorization.

13402682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701343.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13402682 is about 3660.9673584997. The cubic root of 13402682 is about 237.5366192843.

The spelling of 13402682 in words is "thirteen million, four hundred two thousand, six hundred eighty-two".