28685202 has 64 divisors (see below), whose sum is σ = 71414784. Its totient is φ = 7479360.

The previous prime is 28685183. The next prime is 28685213. The reversal of 28685202 is 20258682.

28685202 = 14² + 15² + ... + 441².

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58177 + ... + 58667.

It is an arithmetic number, because the mean of its divisors is an integer number (1115856).

Almost surely, 2^28685202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28685202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35707392).

28685202 is an abundant number, since it is smaller than the sum of its proper divisors (42729582).

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

28685202 is a wasteful number, since it uses less digits than its factorization.

28685202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28685202 is about 5355.8567942020. The cubic root of 28685202 is about 306.1159584443.

The spelling of 28685202 in words is "twenty-eight million, six hundred eighty-five thousand, two hundred two".