27724142 has 8 divisors (see below), whose sum is σ = 41890176. Its totient is φ = 13760752.

The previous prime is 27724139. The next prime is 27724153. The reversal of 27724142 is 24142772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50318 + ... + 50865.

It is an arithmetic number, because the mean of its divisors is an integer number (5236272).

Almost surely, 2^27724142 is an apocalyptic number.

27724142 is a deficient number, since it is larger than the sum of its proper divisors (14166034).

27724142 is a wasteful number, since it uses less digits than its factorization.

27724142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101322.

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

The square root of 27724142 is about 5265.3719716654. The cubic root of 27724142 is about 302.6583811916.

The spelling of 27724142 in words is "twenty-seven million, seven hundred twenty-four thousand, one hundred forty-two".