2127242520 has 256 divisors, whose sum is σ = 7715635200. Its totient is φ = 518192640.

The previous prime is 2127242461. The next prime is 2127242543. The reversal of 2127242520 is 252427212.

2127242520 is a `hidden beast` number, since 212 + 7 + 2 + 425 + 20 = 666.

2127242520 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1445385 + ... + 1446855.

It is an arithmetic number, because the mean of its divisors is an integer number (30139200).

Almost surely, 2^2127242520 is an apocalyptic number.

2127242520 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 2127242520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3857817600).

2127242520 is an abundant number, since it is smaller than the sum of its proper divisors (5588392680).

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

2127242520 is a wasteful number, since it uses less digits than its factorization.

2127242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 2127242520 is about 46122.0394171810. The cubic root of 2127242520 is about 1286.0928834260.

Adding to 2127242520 its reverse (252427212), we get a palindrome (2379669732).

The spelling of 2127242520 in words is "two billion, one hundred twenty-seven million, two hundred forty-two thousand, five hundred twenty".