27120444 has 72 divisors (see below), whose sum is σ = 70342272. Its totient is φ = 8124480.

The previous prime is 27120437. The next prime is 27120451. The reversal of 27120444 is 44402172.

It is an interprime number because it is at equal distance from previous prime (27120437) and next prime (27120451).

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, 87049 + ... + 87359.

It is an arithmetic number, because the mean of its divisors is an integer number (976976).

Almost surely, 2^27120444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27120444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35171136).

27120444 is an abundant number, since it is smaller than the sum of its proper divisors (43221828).

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

27120444 is a wasteful number, since it uses less digits than its factorization.

27120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 27120444 is about 5207.7292556353. The cubic root of 27120444 is about 300.4454272102.

The spelling of 27120444 in words is "twenty-seven million, one hundred twenty thousand, four hundred forty-four".