28216060 has 12 divisors (see below), whose sum is σ = 59253768. Its totient is φ = 11286416.

The previous prime is 28216049. The next prime is 28216079. The reversal of 28216060 is 6061282.

It is a super-2 number, since 2×28216060² = 1592292083847200, which contains 22 as substring.

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, 705382 + ... + 705421.

It is an arithmetic number, because the mean of its divisors is an integer number (4937814).

Almost surely, 2^28216060 is an apocalyptic number.

28216060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28216060 is an abundant number, since it is smaller than the sum of its proper divisors (31037708).

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

28216060 is a wasteful number, since it uses less digits than its factorization.

28216060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410812 (or 1410810 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 28216060 is about 5311.8791401914. The cubic root of 28216060 is about 304.4379508366.

The spelling of 28216060 in words is "twenty-eight million, two hundred sixteen thousand, sixty".