28899360 has 288 divisors, whose sum is σ = 116992512. Its totient is φ = 6359040.

The previous prime is 28899359. The next prime is 28899373. The reversal of 28899360 is 6399882.

28899360 is a `hidden beast` number, since 288 + 9 + 9 + 360 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 473730 + ... + 473790.

It is an arithmetic number, because the mean of its divisors is an integer number (406224).

Almost surely, 2^28899360 is an apocalyptic number.

28899360 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 28899360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58496256).

28899360 is an abundant number, since it is smaller than the sum of its proper divisors (88093152).

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

28899360 is a wasteful number, since it uses less digits than its factorization.

28899360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 28899360 is about 5375.8124967301. The cubic root of 28899360 is about 306.8758706938.

The spelling of 28899360 in words is "twenty-eight million, eight hundred ninety-nine thousand, three hundred sixty".