28368700 has 18 divisors (see below), whose sum is σ = 61560296. Its totient is φ = 11347440.

The previous prime is 28368643. The next prime is 28368701. The reversal of 28368700 is 786382.

28368700 = T₈₃₂ + T₈₃₃ + ... + T₉₀₆.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28368701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141744 + ... + 141943.

Almost surely, 2^28368700 is an apocalyptic number.

28368700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28368700 is an abundant number, since it is smaller than the sum of its proper divisors (33191596).

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

28368700 is a wasteful number, since it uses less digits than its factorization.

28368700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283701 (or 283694 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28368700 is about 5326.2275580377. The cubic root of 28368700 is about 304.9859350318.

The spelling of 28368700 in words is "twenty-eight million, three hundred sixty-eight thousand, seven hundred".