28235120 has 20 divisors (see below), whose sum is σ = 65646840. Its totient is φ = 11294016.

The previous prime is 28235111. The next prime is 28235149. The reversal of 28235120 is 2153282.

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, 176390 + ... + 176549.

It is an arithmetic number, because the mean of its divisors is an integer number (3282342).

Almost surely, 2^28235120 is an apocalyptic number.

28235120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28235120 is an abundant number, since it is smaller than the sum of its proper divisors (37411720).

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

28235120 is a wasteful number, since it uses less digits than its factorization.

28235120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352952 (or 352946 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 28235120 is about 5313.6729293399. The cubic root of 28235120 is about 304.5064848710.

The spelling of 28235120 in words is "twenty-eight million, two hundred thirty-five thousand, one hundred twenty".