274985172 has 192 divisors, whose sum is σ = 910694400. Its totient is φ = 69672960.

The previous prime is 274985153. The next prime is 274985197. The reversal of 274985172 is 271589472.

It is a happy number.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 357204 + ... + 357972.

It is an arithmetic number, because the mean of its divisors is an integer number (4743200).

Almost surely, 2^274985172 is an apocalyptic number.

274985172 is a gapful number since it is divisible by the number (22) 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 274985172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455347200).

274985172 is an abundant number, since it is smaller than the sum of its proper divisors (635709228).

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

274985172 is a wasteful number, since it uses less digits than its factorization.

274985172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 835 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 274985172 is about 16582.6768647284. The cubic root of 274985172 is about 650.2840352338.

The spelling of 274985172 in words is "two hundred seventy-four million, nine hundred eighty-five thousand, one hundred seventy-two".