28133360 has 20 divisors (see below), whose sum is σ = 65410248. Its totient is φ = 11253312.

The previous prime is 28133353. The next prime is 28133381. The reversal of 28133360 is 6333182.

It is a tau number, because it is divible by the number of its divisors (20).

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, 175754 + ... + 175913.

Almost surely, 2^28133360 is an apocalyptic number.

28133360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28133360 is an abundant number, since it is smaller than the sum of its proper divisors (37276888).

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

28133360 is a wasteful number, since it uses less digits than its factorization.

28133360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351680 (or 351674 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 28133360 is about 5304.0889886954. The cubic root of 28133360 is about 304.1402284729.

The spelling of 28133360 in words is "twenty-eight million, one hundred thirty-three thousand, three hundred sixty".