28436260 has 12 divisors (see below), whose sum is σ = 59716188. Its totient is φ = 11374496.

The previous prime is 28436237. The next prime is 28436263. The reversal of 28436260 is 6263482.

It can be written as a sum of positive squares in 2 ways, for example, as 15069924 + 13366336 = 3882^2 + 3656^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28436263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710887 + ... + 710926.

It is an arithmetic number, because the mean of its divisors is an integer number (4976349).

Almost surely, 2^28436260 is an apocalyptic number.

28436260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28436260 is an abundant number, since it is smaller than the sum of its proper divisors (31279928).

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

28436260 is a wasteful number, since it uses less digits than its factorization.

28436260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421822 (or 1421820 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 28436260 is about 5332.5659864647. The cubic root of 28436260 is about 305.2278508824.

The spelling of 28436260 in words is "twenty-eight million, four hundred thirty-six thousand, two hundred sixty".