27431376 has 120 divisors (see below), whose sum is σ = 83967840. Its totient is φ = 7693056.

The previous prime is 27431357. The next prime is 27431381. The reversal of 27431376 is 67313472.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251610 + ... + 251718.

It is an arithmetic number, because the mean of its divisors is an integer number (699732).

Almost surely, 2^27431376 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 27431376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41983920).

27431376 is an abundant number, since it is smaller than the sum of its proper divisors (56536464).

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

27431376 is a wasteful number, since it uses less digits than its factorization.

27431376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 228 counting only the distinct ones).

The product of its digits is 21168, while the sum is 33.

The square root of 27431376 is about 5237.4971121710. The cubic root of 27431376 is about 301.5892549181.

The spelling of 27431376 in words is "twenty-seven million, four hundred thirty-one thousand, three hundred seventy-six".