27450220 has 24 divisors (see below), whose sum is σ = 65880864. Its totient is φ = 9411456.

The previous prime is 27450169. The next prime is 27450251. The reversal of 27450220 is 2205472.

It is a junction number, because it is equal to n+sod(n) for n = 27450191 and 27450200.

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, 97897 + ... + 98176.

It is an arithmetic number, because the mean of its divisors is an integer number (2745036).

Almost surely, 2^27450220 is an apocalyptic number.

27450220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27450220 is an abundant number, since it is smaller than the sum of its proper divisors (38430644).

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

27450220 is a wasteful number, since it uses less digits than its factorization.

27450220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196089 (or 196087 counting only the distinct ones).

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

The square root of 27450220 is about 5239.2957542021. The cubic root of 27450220 is about 301.6582980833.

Adding to 27450220 its reverse (2205472), we get a palindrome (29655692).

The spelling of 27450220 in words is "twenty-seven million, four hundred fifty thousand, two hundred twenty".