2127540 has 48 divisors (see below), whose sum is σ = 6068160. Its totient is φ = 556800.

The previous prime is 2127529. The next prime is 2127553. The reversal of 2127540 is 457212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3240 + ... + 3840.

It is an arithmetic number, because the mean of its divisors is an integer number (126420).

2^2127540 is an apocalyptic number.

2127540 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 2127540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3034080).

2127540 is an abundant number, since it is smaller than the sum of its proper divisors (3940620).

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

2127540 is a wasteful number, since it uses less digits than its factorization.

2127540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2127540 is about 1458.6089263404. The cubic root of 2127540 is about 128.6152830999.

The spelling of 2127540 in words is "two million, one hundred twenty-seven thousand, five hundred forty".