28233080 has 16 divisors (see below), whose sum is σ = 63524520. Its totient is φ = 11293216.

The previous prime is 28233077. The next prime is 28233091. The reversal of 28233080 is 8033282.

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, 352874 + ... + 352953.

Almost surely, 2^28233080 is an apocalyptic number.

28233080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28233080 is an abundant number, since it is smaller than the sum of its proper divisors (35291440).

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

28233080 is a wasteful number, since it uses less digits than its factorization.

28233080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705838 (or 705834 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 28233080 is about 5313.4809682542. The cubic root of 28233080 is about 304.4991511180.

The spelling of 28233080 in words is "twenty-eight million, two hundred thirty-three thousand, eighty".