28254700 has 36 divisors (see below), whose sum is σ = 63433440. Its totient is φ = 10911040.

The previous prime is 28254683. The next prime is 28254701. The reversal of 28254700 is 745282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28254701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1972 + ... + 7771.

It is an arithmetic number, because the mean of its divisors is an integer number (1762040).

Almost surely, 2^28254700 is an apocalyptic number.

28254700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28254700 is an abundant number, since it is smaller than the sum of its proper divisors (35178740).

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

28254700 is a wasteful number, since it uses less digits than its factorization.

28254700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9786 (or 9779 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 28254700 is about 5315.5150267872. The cubic root of 28254700 is about 304.5768565607.

Adding to 28254700 its reverse (745282), we get a palindrome (28999982).

The spelling of 28254700 in words is "twenty-eight million, two hundred fifty-four thousand, seven hundred".