27421472 has 48 divisors (see below), whose sum is σ = 60170040. Its totient is φ = 12214272.

The previous prime is 27421469. The next prime is 27421481. The reversal of 27421472 is 27412472.

It can be written as a sum of positive squares in 4 ways, for example, as 24167056 + 3254416 = 4916^2 + 1804^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10928 + ... + 13200.

Almost surely, 2^27421472 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 27421472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30085020).

27421472 is an abundant number, since it is smaller than the sum of its proper divisors (32748568).

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

27421472 is a wasteful number, since it uses less digits than its factorization.

27421472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325 (or 2317 counting only the distinct ones).

The product of its digits is 6272, while the sum is 29.

The square root of 27421472 is about 5236.5515370327. The cubic root of 27421472 is about 301.5529546425.

The spelling of 27421472 in words is "twenty-seven million, four hundred twenty-one thousand, four hundred seventy-two".