274173228 has 144 divisors (see below), whose sum is σ = 836559360. Its totient is φ = 77420448.

The previous prime is 274173209. The next prime is 274173239. The reversal of 274173228 is 822371472.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 274173192 and 274173201.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 544825 + ... + 545327.

It is an arithmetic number, because the mean of its divisors is an integer number (5809440).

Almost surely, 2^274173228 is an apocalyptic number.

274173228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274173228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418279680).

274173228 is an abundant number, since it is smaller than the sum of its proper divisors (562386132).

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

274173228 is a wasteful number, since it uses less digits than its factorization.

274173228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 618 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 274173228 is about 16558.1770735791. The cubic root of 274173228 is about 649.6433767606.

The spelling of 274173228 in words is "two hundred seventy-four million, one hundred seventy-three thousand, two hundred twenty-eight".