27661452 has 96 divisors (see below), whose sum is σ = 80758272. Its totient is φ = 7174656.

The previous prime is 27661411. The next prime is 27661471. The reversal of 27661452 is 25416672.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79543 + ... + 79889.

It is an arithmetic number, because the mean of its divisors is an integer number (841232).

Almost surely, 2^27661452 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 27661452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40379136).

27661452 is an abundant number, since it is smaller than the sum of its proper divisors (53096820).

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

27661452 is a wasteful number, since it uses less digits than its factorization.

27661452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 445 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 27661452 is about 5259.4155568846. The cubic root of 27661452 is about 302.4300847004.

The spelling of 27661452 in words is "twenty-seven million, six hundred sixty-one thousand, four hundred fifty-two".