13628826 has 12 divisors (see below), whose sum is σ = 29529162. Its totient is φ = 4542936.

The previous prime is 13628821. The next prime is 13628827. The reversal of 13628826 is 62882631.

13628826 is a `hidden beast` number, since 1 + 3 + 628 + 8 + 26 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13505625 + 123201 = 3675^2 + 351^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13628821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 378561 + ... + 378596.

Almost surely, 2^13628826 is an apocalyptic number.

13628826 is an abundant number, since it is smaller than the sum of its proper divisors (15900336).

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

13628826 is a wasteful number, since it uses less digits than its factorization.

13628826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757165 (or 757162 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 13628826 is about 3691.7239875159. The cubic root of 13628826 is about 238.8651632307.

The spelling of 13628826 in words is "thirteen million, six hundred twenty-eight thousand, eight hundred twenty-six".