27158928 has 80 divisors (see below), whose sum is σ = 75370176. Its totient is φ = 8396800.

The previous prime is 27158927. The next prime is 27158941. The reversal of 27158928 is 82985172.

It is a self number, because there is not a number n which added to its sum of digits gives 27158928.

It is not an unprimeable number, because it can be changed into a prime (27158927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67528 + ... + 67928.

Almost surely, 2^27158928 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 27158928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37685088).

27158928 is an abundant number, since it is smaller than the sum of its proper divisors (48211248).

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

27158928 is a wasteful number, since it uses less digits than its factorization.

27158928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 506 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 27158928 is about 5211.4228383427. The cubic root of 27158928 is about 300.5874710638.

The spelling of 27158928 in words is "twenty-seven million, one hundred fifty-eight thousand, nine hundred twenty-eight".