28124450 has 24 divisors (see below), whose sum is σ = 53303508. Its totient is φ = 11036480.

The previous prime is 28124441. The next prime is 28124479. The reversal of 28124450 is 5442182.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 23030401 + 5094049 = 4799^2 + 2257^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2657 + ... + 7956.

Almost surely, 2^28124450 is an apocalyptic number.

28124450 is a deficient number, since it is larger than the sum of its proper divisors (25179058).

28124450 is a wasteful number, since it uses less digits than its factorization.

28124450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10678 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 28124450 is about 5303.2490041483. The cubic root of 28124450 is about 304.1081174184.

The spelling of 28124450 in words is "twenty-eight million, one hundred twenty-four thousand, four hundred fifty".