28233456 has 40 divisors (see below), whose sum is σ = 74638080. Its totient is φ = 9191616.

The previous prime is 28233451. The next prime is 28233473. The reversal of 28233456 is 65433282.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28233451) 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, 4776 + ... + 8903.

It is an arithmetic number, because the mean of its divisors is an integer number (1865952).

Almost surely, 2^28233456 is an apocalyptic number.

It is an amenable number.

28233456 is an abundant number, since it is smaller than the sum of its proper divisors (46404624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28233456 is a wasteful number, since it uses less digits than its factorization.

28233456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13733 (or 13727 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 28233456 is about 5313.5163498384. The cubic root of 28233456 is about 304.5005028559.

The spelling of 28233456 in words is "twenty-eight million, two hundred thirty-three thousand, four hundred fifty-six".