27611142 has 64 divisors (see below), whose sum is σ = 64727040. Its totient is φ = 7776000.

The previous prime is 27611113. The next prime is 27611149. The reversal of 27611142 is 24111672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27611149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45642 + ... + 46242.

It is an arithmetic number, because the mean of its divisors is an integer number (1011360).

Almost surely, 2^27611142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27611142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32363520).

27611142 is an abundant number, since it is smaller than the sum of its proper divisors (37115898).

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

27611142 is a wasteful number, since it uses less digits than its factorization.

27611142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669.

The product of its digits is 672, while the sum is 24.

The square root of 27611142 is about 5254.6305293522. The cubic root of 27611142 is about 302.2466225153.

The spelling of 27611142 in words is "twenty-seven million, six hundred eleven thousand, one hundred forty-two".