28500322 has 8 divisors (see below), whose sum is σ = 42774876. Its totient is φ = 14242032.

The previous prime is 28500317. The next prime is 28500331. The reversal of 28500322 is 22300582.

It can be written as a sum of positive squares in 2 ways, for example, as 25613721 + 2886601 = 5061^2 + 1699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28500293 and 28500302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2328 + ... + 7900.

Almost surely, 2^28500322 is an apocalyptic number.

28500322 is a deficient number, since it is larger than the sum of its proper divisors (14274554).

28500322 is a wasteful number, since it uses less digits than its factorization.

28500322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8132.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 28500322 is about 5338.5692839936. The cubic root of 28500322 is about 305.4568875815.

The spelling of 28500322 in words is "twenty-eight million, five hundred thousand, three hundred twenty-two".