28335392 has 18 divisors (see below), whose sum is σ = 55844649. Its totient is φ = 14152640.

The previous prime is 28335389. The next prime is 28335421. The reversal of 28335392 is 29353382.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 27920656 + 414736 = 5284^2 + 644^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3764.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29642 + ... + 30582.

Almost surely, 2^28335392 is an apocalyptic number.

It is an amenable number.

28335392 is a deficient number, since it is larger than the sum of its proper divisors (27509257).

28335392 is an frugal number, since it uses more digits than its factorization.

28335392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 943 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 28335392 is about 5323.0998487723. The cubic root of 28335392 is about 304.8665258491.

The spelling of 28335392 in words is "twenty-eight million, three hundred thirty-five thousand, three hundred ninety-two".