28340300 has 18 divisors (see below), whose sum is σ = 61498668. Its totient is φ = 11336080.

The previous prime is 28340251. The next prime is 28340329. The reversal of 28340300 is 304382.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141602 + ... + 141801.

Almost surely, 2^28340300 is an apocalyptic number.

28340300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28340300 is an abundant number, since it is smaller than the sum of its proper divisors (33158368).

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

28340300 is a wasteful number, since it uses less digits than its factorization.

28340300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283417 (or 283410 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 28340300 is about 5323.5608383863. The cubic root of 28340300 is about 304.8841269058.

Adding to 28340300 its reverse (304382), we get a palindrome (28644682).

The spelling of 28340300 in words is "twenty-eight million, three hundred forty thousand, three hundred".