274905220 has 12 divisors (see below), whose sum is σ = 577301004. Its totient is φ = 109962080.

The previous prime is 274905217. The next prime is 274905229. The reversal of 274905220 is 22509472.

It can be written as a sum of positive squares in 2 ways, for example, as 145491844 + 129413376 = 12062^2 + 11376^2 .

It is not an unprimeable number, because it can be changed into a prime (274905229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6872611 + ... + 6872650.

It is an arithmetic number, because the mean of its divisors is an integer number (48108417).

Almost surely, 2^274905220 is an apocalyptic number.

274905220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274905220 is an abundant number, since it is smaller than the sum of its proper divisors (302395784).

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

274905220 is a wasteful number, since it uses less digits than its factorization.

274905220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13745270 (or 13745268 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 274905220 is about 16580.2659809787. The cubic root of 274905220 is about 650.2210057154.

The spelling of 274905220 in words is "two hundred seventy-four million, nine hundred five thousand, two hundred twenty".