28853520 has 40 divisors (see below), whose sum is σ = 89446656. Its totient is φ = 7694208.

The previous prime is 28853519. The next prime is 28853527. The reversal of 28853520 is 2535882.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (28853527) 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, 59872 + ... + 60351.

Almost surely, 2^28853520 is an apocalyptic number.

28853520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28853520 is an abundant number, since it is smaller than the sum of its proper divisors (60593136).

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

28853520 is a wasteful number, since it uses less digits than its factorization.

28853520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120239 (or 120233 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 28853520 is about 5371.5472631263. The cubic root of 28853520 is about 306.7135299103.

The spelling of 28853520 in words is "twenty-eight million, eight hundred fifty-three thousand, five hundred twenty".