28842680 has 64 divisors (see below), whose sum is σ = 68191200. Its totient is φ = 10967040.

The previous prime is 28842677. The next prime is 28842701. The reversal of 28842680 is 8624882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70316 + ... + 70724.

Almost surely, 2^28842680 is an apocalyptic number.

28842680 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 28842680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34095600).

28842680 is an abundant number, since it is smaller than the sum of its proper divisors (39348520).

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

28842680 is a wasteful number, since it uses less digits than its factorization.

28842680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 28842680 is about 5370.5381480816. The cubic root of 28842680 is about 306.6751152892.

The spelling of 28842680 in words is "twenty-eight million, eight hundred forty-two thousand, six hundred eighty".