27142812 has 36 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 8515200.

The previous prime is 27142799. The next prime is 27142823. The reversal of 27142812 is 21824172.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 21564 + ... + 22787.

It is an arithmetic number, because the mean of its divisors is an integer number (2018016).

Almost surely, 2^27142812 is an apocalyptic number.

It is an amenable number.

27142812 is an abundant number, since it is smaller than the sum of its proper divisors (45505764).

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

27142812 is a wasteful number, since it uses less digits than its factorization.

27142812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44378 (or 44373 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 27142812 is about 5209.8763900883. The cubic root of 27142812 is about 300.5280034958.

Adding to 27142812 its reverse (21824172), we get a palindrome (48966984).

The spelling of 27142812 in words is "twenty-seven million, one hundred forty-two thousand, eight hundred twelve".