28843460 has 12 divisors (see below), whose sum is σ = 60571308. Its totient is φ = 11537376.

The previous prime is 28843457. The next prime is 28843469. The reversal of 28843460 is 6434882.

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 19998784 = 2974^2 + 4472^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28843460.

It is not an unprimeable number, because it can be changed into a prime (28843469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721067 + ... + 721106.

It is an arithmetic number, because the mean of its divisors is an integer number (5047609).

Almost surely, 2^28843460 is an apocalyptic number.

28843460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28843460 is an abundant number, since it is smaller than the sum of its proper divisors (31727848).

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

28843460 is a wasteful number, since it uses less digits than its factorization.

28843460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442182 (or 1442180 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 28843460 is about 5370.6107660116. The cubic root of 28843460 is about 306.6778797622.

The spelling of 28843460 in words is "twenty-eight million, eight hundred forty-three thousand, four hundred sixty".