28752120 has 48 divisors (see below), whose sum is σ = 93445560. Its totient is φ = 7667136.

The previous prime is 28752103. The next prime is 28752121. The reversal of 28752120 is 2125782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28752121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39574 + ... + 40293.

Almost surely, 2^28752120 is an apocalyptic number.

28752120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28752120 is an abundant number, since it is smaller than the sum of its proper divisors (64693440).

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

28752120 is a wasteful number, since it uses less digits than its factorization.

28752120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79884 (or 79877 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 28752120 is about 5362.1003347569. The cubic root of 28752120 is about 306.3538134792.

The spelling of 28752120 in words is "twenty-eight million, seven hundred fifty-two thousand, one hundred twenty".