28456022 has 8 divisors (see below), whose sum is σ = 48781776. Its totient is φ = 12195432.

The previous prime is 28456007. The next prime is 28456063. The reversal of 28456022 is 22065482.

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

It is a congruent number.

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, 1016273 + ... + 1016300.

It is an arithmetic number, because the mean of its divisors is an integer number (6097722).

Almost surely, 2^28456022 is an apocalyptic number.

28456022 is a deficient number, since it is larger than the sum of its proper divisors (20325754).

28456022 is a wasteful number, since it uses less digits than its factorization.

28456022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032582.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 28456022 is about 5334.4186187438. The cubic root of 28456022 is about 305.2985413321.

The spelling of 28456022 in words is "twenty-eight million, four hundred fifty-six thousand, twenty-two".