28860120 has 48 divisors (see below), whose sum is σ = 93796560. Its totient is φ = 7695936.

The previous prime is 28860109. The next prime is 28860127. The reversal of 28860120 is 2106882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860127) 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, 39724 + ... + 40443.

It is an arithmetic number, because the mean of its divisors is an integer number (1954095).

Almost surely, 2^28860120 is an apocalyptic number.

28860120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28860120 is an abundant number, since it is smaller than the sum of its proper divisors (64936440).

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

28860120 is a wasteful number, since it uses less digits than its factorization.

28860120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80184 (or 80177 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 28860120 is about 5372.1615761256. The cubic root of 28860120 is about 306.7369141741.

The spelling of 28860120 in words is "twenty-eight million, eight hundred sixty thousand, one hundred twenty".