28814100 has 72 divisors (see below), whose sum is σ = 95285568. Its totient is φ = 6585600.

The previous prime is 28814077. The next prime is 28814129. The reversal of 28814100 is 141882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4761 + ... + 8960.

Almost surely, 2^28814100 is an apocalyptic number.

28814100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28814100 is an abundant number, since it is smaller than the sum of its proper divisors (66471468).

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

28814100 is a wasteful number, since it uses less digits than its factorization.

28814100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13745 (or 13738 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 28814100 is about 5367.8766751854. The cubic root of 28814100 is about 306.5737877730.

Adding to 28814100 its reverse (141882), we get a palindrome (28955982).

The spelling of 28814100 in words is "twenty-eight million, eight hundred fourteen thousand, one hundred".