28134576 has 60 divisors (see below), whose sum is σ = 80432352. Its totient is φ = 9176448.

The previous prime is 28134571. The next prime is 28134619. The reversal of 28134576 is 67543182.

28134576 is a `hidden beast` number, since 2 + 81 + 3 + 4 + 576 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28134576.

It is not an unprimeable number, because it can be changed into a prime (28134571) 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, 4690 + ... + 8846.

Almost surely, 2^28134576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28134576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40216176).

28134576 is an abundant number, since it is smaller than the sum of its proper divisors (52297776).

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

28134576 is a wasteful number, since it uses less digits than its factorization.

28134576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218 (or 4209 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 28134576 is about 5304.2036160012. The cubic root of 28134576 is about 304.1446103312.

The spelling of 28134576 in words is "twenty-eight million, one hundred thirty-four thousand, five hundred seventy-six".