27189472 has 48 divisors (see below), whose sum is σ = 56201040. Its totient is φ = 12931072.

The previous prime is 27189467. The next prime is 27189479. The reversal of 27189472 is 27498172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27189479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76848 + ... + 77200.

It is an arithmetic number, because the mean of its divisors is an integer number (1170855).

Almost surely, 2^27189472 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 27189472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28100520).

27189472 is an abundant number, since it is smaller than the sum of its proper divisors (29011568).

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

27189472 is a wasteful number, since it uses less digits than its factorization.

27189472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 467 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 27189472 is about 5214.3525005508. The cubic root of 27189472 is about 300.7001130164.

The spelling of 27189472 in words is "twenty-seven million, one hundred eighty-nine thousand, four hundred seventy-two".