28387160 has 16 divisors (see below), whose sum is σ = 63871200. Its totient is φ = 11354848.

The previous prime is 28387141. The next prime is 28387193. The reversal of 28387160 is 6178382.

It is a self number, because there is not a number n which added to its sum of digits gives 28387160.

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, 354800 + ... + 354879.

It is an arithmetic number, because the mean of its divisors is an integer number (3991950).

Almost surely, 2^28387160 is an apocalyptic number.

28387160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28387160 is an abundant number, since it is smaller than the sum of its proper divisors (35484040).

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

28387160 is a wasteful number, since it uses less digits than its factorization.

28387160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709690 (or 709686 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 28387160 is about 5327.9602100616. The cubic root of 28387160 is about 305.0520738822.

The spelling of 28387160 in words is "twenty-eight million, three hundred eighty-seven thousand, one hundred sixty".