27266140 has 72 divisors (see below), whose sum is σ = 66361680. Its totient is φ = 9377280.

The previous prime is 27266131. The next prime is 27266191. The reversal of 27266140 is 4166272.

It is a junction number, because it is equal to n+sod(n) for n = 27266099 and 27266108.

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, 45684 + ... + 46276.

It is an arithmetic number, because the mean of its divisors is an integer number (921690).

Almost surely, 2^27266140 is an apocalyptic number.

27266140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27266140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33180840).

27266140 is an abundant number, since it is smaller than the sum of its proper divisors (39095540).

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

27266140 is a wasteful number, since it uses less digits than its factorization.

27266140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 630 counting only the distinct ones).

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

The square root of 27266140 is about 5221.6989572360. The cubic root of 27266140 is about 300.9824826176.

The spelling of 27266140 in words is "twenty-seven million, two hundred sixty-six thousand, one hundred forty".