28310260 has 24 divisors (see below), whose sum is σ = 64856736. Its totient is φ = 10294560.

The previous prime is 28310257. The next prime is 28310273. The reversal of 28310260 is 6201382.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64122 + ... + 64561.

It is an arithmetic number, because the mean of its divisors is an integer number (2702364).

Almost surely, 2^28310260 is an apocalyptic number.

28310260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28310260 is an abundant number, since it is smaller than the sum of its proper divisors (36546476).

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

28310260 is a wasteful number, since it uses less digits than its factorization.

28310260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128703 (or 128701 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 28310260 is about 5320.7386705231. The cubic root of 28310260 is about 304.7763656720.

The spelling of 28310260 in words is "twenty-eight million, three hundred ten thousand, two hundred sixty".