13622288 has 10 divisors (see below), whose sum is σ = 26393214. Its totient is φ = 6811136.

The previous prime is 13622269. The next prime is 13622293. The reversal of 13622288 is 88222631.

13622288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12054784 + 1567504 = 3472^2 + 1252^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425681 + ... + 425712.

Almost surely, 2^13622288 is an apocalyptic number.

It is an amenable number.

13622288 is a deficient number, since it is larger than the sum of its proper divisors (12770926).

13622288 is an equidigital number, since it uses as much as digits as its factorization.

13622288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851401 (or 851395 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 13622288 is about 3690.8383871419. The cubic root of 13622288 is about 238.8269611085.

It can be divided in two parts, 1362 and 2288, that multiplied together give a triangular number (3116256 = T₂₄₉₆).

The spelling of 13622288 in words is "thirteen million, six hundred twenty-two thousand, two hundred eighty-eight".