27252220 has 24 divisors (see below), whose sum is σ = 57922704. Its totient is φ = 10768896.

The previous prime is 27252209. The next prime is 27252233. The reversal of 27252220 is 2225272.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27252191 and 27252200.

It is a congruent number.

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, 6549 + ... + 9868.

It is an arithmetic number, because the mean of its divisors is an integer number (2413446).

Almost surely, 2^27252220 is an apocalyptic number.

27252220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27252220 is an abundant number, since it is smaller than the sum of its proper divisors (30670484).

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

27252220 is a wasteful number, since it uses less digits than its factorization.

27252220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16509 (or 16507 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 27252220 is about 5220.3658875600. The cubic root of 27252220 is about 300.9312543746.

Adding to 27252220 its reverse (2225272), we get a palindrome (29477492).

It can be divided in two parts, 27252 and 220, that added together give a palindrome (27472).

The spelling of 27252220 in words is "twenty-seven million, two hundred fifty-two thousand, two hundred twenty".