274185228 has 12 divisors (see below), whose sum is σ = 639765560. Its totient is φ = 91395072.

The previous prime is 274185217. The next prime is 274185229. The reversal of 274185228 is 822581472.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (274185229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11424373 + ... + 11424396.

Almost surely, 2^274185228 is an apocalyptic number.

It is an amenable number.

274185228 is an abundant number, since it is smaller than the sum of its proper divisors (365580332).

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

274185228 is a wasteful number, since it uses less digits than its factorization.

274185228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22848776 (or 22848774 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 274185228 is about 16558.5394283433. The cubic root of 274185228 is about 649.6528544752.

The spelling of 274185228 in words is "two hundred seventy-four million, one hundred eighty-five thousand, two hundred twenty-eight".