27142660 has 36 divisors (see below), whose sum is σ = 57987468. Its totient is φ = 10671808.

The previous prime is 27142651. The next prime is 27142673. The reversal of 27142660 is 6624172.

It can be written as a sum of positive squares in 2 ways, for example, as 20088324 + 7054336 = 4482^2 + 2656^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137682 + ... + 137878.

It is an arithmetic number, because the mean of its divisors is an integer number (1610763).

Almost surely, 2^27142660 is an apocalyptic number.

27142660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27142660 is an abundant number, since it is smaller than the sum of its proper divisors (30844808).

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

27142660 is a wasteful number, since it uses less digits than its factorization.

27142660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 27142660 is about 5209.8618023898. The cubic root of 27142660 is about 300.5274425083.

The spelling of 27142660 in words is "twenty-seven million, one hundred forty-two thousand, six hundred sixty".