28050660 has 144 divisors (see below), whose sum is σ = 96026112. Its totient is φ = 6566400.

The previous prime is 28050653. The next prime is 28050661. The reversal of 28050660 is 6605082.

It is not an unprimeable number, because it can be changed into a prime (28050661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61152 + ... + 61608.

It is an arithmetic number, because the mean of its divisors is an integer number (666848).

Almost surely, 2^28050660 is an apocalyptic number.

28050660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28050660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48013056).

28050660 is an abundant number, since it is smaller than the sum of its proper divisors (67975452).

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

28050660 is a wasteful number, since it uses less digits than its factorization.

28050660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 28050660 is about 5296.2873789099. The cubic root of 28050660 is about 303.8419220854.

The spelling of 28050660 in words is "twenty-eight million, fifty thousand, six hundred sixty".