28452276 has 48 divisors (see below), whose sum is σ = 74054400. Its totient is φ = 9446976.

The previous prime is 28452269. The next prime is 28452293. The reversal of 28452276 is 67225482.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28452276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49720 + ... + 50288.

It is an arithmetic number, because the mean of its divisors is an integer number (1542800).

Almost surely, 2^28452276 is an apocalyptic number.

It is an amenable number.

28452276 is an abundant number, since it is smaller than the sum of its proper divisors (45602124).

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

28452276 is a wasteful number, since it uses less digits than its factorization.

28452276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1037 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 28452276 is about 5334.0674911366. The cubic root of 28452276 is about 305.2851440680.

The spelling of 28452276 in words is "twenty-eight million, four hundred fifty-two thousand, two hundred seventy-six".