13426506 has 16 divisors (see below), whose sum is σ = 29836800. Its totient is φ = 4475484.

The previous prime is 13426493. The next prime is 13426513. The reversal of 13426506 is 60562431.

13426506 is a `hidden beast` number, since 1 + 3 + 4 + 2 + 650 + 6 = 666.

13426506 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13426506.

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, 124266 + ... + 124373.

It is an arithmetic number, because the mean of its divisors is an integer number (1864800).

Almost surely, 2^13426506 is an apocalyptic number.

13426506 is an abundant number, since it is smaller than the sum of its proper divisors (16410294).

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

13426506 is a wasteful number, since it uses less digits than its factorization.

13426506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248650 (or 248644 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 13426506 is about 3664.2196986535. The cubic root of 13426506 is about 237.6772807484.

Adding to 13426506 its reverse (60562431), we get a palindrome (73988937).

The spelling of 13426506 in words is "thirteen million, four hundred twenty-six thousand, five hundred six".