13628522 has 4 divisors (see below), whose sum is σ = 20442786. Its totient is φ = 6814260.

The previous prime is 13628513. The next prime is 13628539. The reversal of 13628522 is 22582631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13623481 + 5041 = 3691^2 + 71^2 .

It is a super-2 number, since 2×13628522² = 371473223808968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407129 + ... + 3407132.

Almost surely, 2^13628522 is an apocalyptic number.

13628522 is a deficient number, since it is larger than the sum of its proper divisors (6814264).

13628522 is an equidigital number, since it uses as much as digits as its factorization.

13628522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814263.

The product of its digits is 5760, while the sum is 29.

The square root of 13628522 is about 3691.6828141107. The cubic root of 13628522 is about 238.8633872022.

The spelling of 13628522 in words is "thirteen million, six hundred twenty-eight thousand, five hundred twenty-two".