13627220 has 12 divisors (see below), whose sum is σ = 28617204. Its totient is φ = 5450880.

The previous prime is 13627213. The next prime is 13627231. The reversal of 13627220 is 2272631.

It can be written as a sum of positive squares in 2 ways, for example, as 6130576 + 7496644 = 2476^2 + 2738^2 .

It is a super-2 number, since 2×13627220² = 371402249856800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340661 + ... + 340700.

It is an arithmetic number, because the mean of its divisors is an integer number (2384767).

Almost surely, 2^13627220 is an apocalyptic number.

13627220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13627220 is an abundant number, since it is smaller than the sum of its proper divisors (14989984).

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

13627220 is a wasteful number, since it uses less digits than its factorization.

13627220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681370 (or 681368 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13627220 is about 3691.5064675549. The cubic root of 13627220 is about 238.8557803604.

Adding to 13627220 its reverse (2272631), we get a palindrome (15899851).

The spelling of 13627220 in words is "thirteen million, six hundred twenty-seven thousand, two hundred twenty".