28266960 has 40 divisors (see below), whose sum is σ = 87628320. Its totient is φ = 7537792.

The previous prime is 28266949. The next prime is 28266961. The reversal of 28266960 is 6966282.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28266961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58650 + ... + 59129.

It is an arithmetic number, because the mean of its divisors is an integer number (2190708).

Almost surely, 2^28266960 is an apocalyptic number.

28266960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28266960 is an abundant number, since it is smaller than the sum of its proper divisors (59361360).

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

28266960 is a wasteful number, since it uses less digits than its factorization.

28266960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117795 (or 117789 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 28266960 is about 5316.6681295714. The cubic root of 28266960 is about 304.6209031830.

The spelling of 28266960 in words is "twenty-eight million, two hundred sixty-six thousand, nine hundred sixty".