274897152 has 144 divisors (see below), whose sum is σ = 824631360. Its totient is φ = 91445760.

The previous prime is 274897141. The next prime is 274897159. The reversal of 274897152 is 251798472.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×274897152² = 151136888355422208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 274897098 and 274897107.

It is not an unprimeable number, because it can be changed into a prime (274897159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559627 + ... + 560117.

Almost surely, 2^274897152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274897152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412315680).

274897152 is an abundant number, since it is smaller than the sum of its proper divisors (549734208).

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

274897152 is an frugal number, since it uses more digits than its factorization.

274897152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 496 counting only the distinct ones).

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

The square root of 274897152 is about 16580.0226779097. The cubic root of 274897152 is about 650.2146446935.

The spelling of 274897152 in words is "two hundred seventy-four million, eight hundred ninety-seven thousand, one hundred fifty-two".