183274728 has 128 divisors (see below), whose sum is σ = 582328320. Its totient is φ = 46759680.

The previous prime is 183274717. The next prime is 183274733. The reversal of 183274728 is 827472381.

183274728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 183274728.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66351 + ... + 69057.

It is an arithmetic number, because the mean of its divisors is an integer number (4549440).

Almost surely, 2^183274728 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 183274728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291164160).

183274728 is an abundant number, since it is smaller than the sum of its proper divisors (399053592).

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

183274728 is a wasteful number, since it uses less digits than its factorization.

183274728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2763 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 183274728 is about 13537.8996893905. The cubic root of 183274728 is about 568.0251013836.

It can be divided in two parts, 183 and 274728, that added together give a triangular number (274911 = T₇₄₁).

The spelling of 183274728 in words is "one hundred eighty-three million, two hundred seventy-four thousand, seven hundred twenty-eight".