28000322 has 16 divisors (see below), whose sum is σ = 48310080. Its totient is φ = 11922768.

The previous prime is 28000321. The next prime is 28000337. The reversal of 28000322 is 22300082.

It is a self number, because there is not a number n which added to its sum of digits gives 28000322.

It is not an unprimeable number, because it can be changed into a prime (28000321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4172 + ... + 8567.

It is an arithmetic number, because the mean of its divisors is an integer number (3019380).

Almost surely, 2^28000322 is an apocalyptic number.

28000322 is a deficient number, since it is larger than the sum of its proper divisors (20309758).

28000322 is a wasteful number, since it uses less digits than its factorization.

28000322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 28000322 is about 5291.5330481818. The cubic root of 28000322 is about 303.6600612089.

The spelling of 28000322 in words is "twenty-eight million, three hundred twenty-two", and thus it is an aban number.