27474228 has 60 divisors (see below), whose sum is σ = 75620160. Its totient is φ = 8674128.

The previous prime is 27474203. The next prime is 27474263. The reversal of 27474228 is 82247472.

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

It is a junction number, because it is equal to n+sod(n) for n = 27474192 and 27474201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3925 + ... + 8387.

It is an arithmetic number, because the mean of its divisors is an integer number (1260336).

Almost surely, 2^27474228 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 27474228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37810080).

27474228 is an abundant number, since it is smaller than the sum of its proper divisors (48145932).

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

27474228 is a wasteful number, since it uses less digits than its factorization.

27474228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498 (or 4487 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 27474228 is about 5241.5864010813. The cubic root of 27474228 is about 301.7462160440.

The spelling of 27474228 in words is "twenty-seven million, four hundred seventy-four thousand, two hundred twenty-eight".