28741100 has 36 divisors (see below), whose sum is σ = 63032424. Its totient is φ = 11374080.

The previous prime is 28741087. The next prime is 28741109. The reversal of 28741100 is 114782.

It is not an unprimeable number, because it can be changed into a prime (28741109) 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, 8219 + ... + 11181.

Almost surely, 2^28741100 is an apocalyptic number.

28741100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28741100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31516212).

28741100 is an abundant number, since it is smaller than the sum of its proper divisors (34291324).

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

28741100 is a wasteful number, since it uses less digits than its factorization.

28741100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 28741100 is about 5361.0726538632. The cubic root of 28741100 is about 306.3146691143.

Adding to 28741100 its reverse (114782), we get a palindrome (28855882).

The spelling of 28741100 in words is "twenty-eight million, seven hundred forty-one thousand, one hundred".