28065160 has 16 divisors (see below), whose sum is σ = 63146700. Its totient is φ = 11226048.

The previous prime is 28065151. The next prime is 28065187. The reversal of 28065160 is 6156082.

It can be written as a sum of positive squares in 2 ways, for example, as 27520516 + 544644 = 5246^2 + 738^2 .

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, 350775 + ... + 350854.

Almost surely, 2^28065160 is an apocalyptic number.

28065160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28065160 is an abundant number, since it is smaller than the sum of its proper divisors (35081540).

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

28065160 is a wasteful number, since it uses less digits than its factorization.

28065160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701640 (or 701636 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 28065160 is about 5297.6560854778. The cubic root of 28065160 is about 303.8942672465.

The spelling of 28065160 in words is "twenty-eight million, sixty-five thousand, one hundred sixty".