28803450 has 48 divisors (see below), whose sum is σ = 76932576. Its totient is φ = 7089600.

The previous prime is 28803419. The next prime is 28803451. The reversal of 28803450 is 5430882.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (28803451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5436 + ... + 9335.

It is an arithmetic number, because the mean of its divisors is an integer number (1602762).

Almost surely, 2^28803450 is an apocalyptic number.

28803450 is an abundant number, since it is smaller than the sum of its proper divisors (48129126).

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

28803450 is a wasteful number, since it uses less digits than its factorization.

28803450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14799 (or 14794 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 28803450 is about 5366.8845711455. The cubic root of 28803450 is about 306.5360121333.

The spelling of 28803450 in words is "twenty-eight million, eight hundred three thousand, four hundred fifty".