274528 has 24 divisors (see below), whose sum is σ = 565488. Its totient is φ = 130944.

The previous prime is 274517. The next prime is 274529. The reversal of 274528 is 825472.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2¹³ + 7 + 5² + 4⁶ + 2¹⁸ + 8² .

It is a junction number, because it is equal to n+sod(n) for n = 274496 and 274505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (23562).

2²⁷⁴⁵²⁸ 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 274528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282744).

274528 is an abundant number, since it is smaller than the sum of its proper divisors (290960).

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

274528 is a wasteful number, since it uses less digits than its factorization.

274528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 398 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 274528 is about 523.9541964714. The cubic root of 274528 is about 64.9923462388.

The spelling of 274528 in words is "two hundred seventy-four thousand, five hundred twenty-eight".