28324450 has 72 divisors (see below), whose sum is σ = 66919824. Its totient is φ = 8820000.

The previous prime is 28324411. The next prime is 28324507. The reversal of 28324450 is 5442382.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26425 + ... + 27475.

It is an arithmetic number, because the mean of its divisors is an integer number (929442).

Almost surely, 2^28324450 is an apocalyptic number.

28324450 is an abundant number, since it is smaller than the sum of its proper divisors (38595374).

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

28324450 is a wasteful number, since it uses less digits than its factorization.

28324450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 28324450 is about 5322.0719649400. The cubic root of 28324450 is about 304.8272783595.

The spelling of 28324450 in words is "twenty-eight million, three hundred twenty-four thousand, four hundred fifty".