2124244440 has 160 divisors (see below), whose sum is σ = 7314420960. Its totient is φ = 552614400.

The previous prime is 2124244411. The next prime is 2124244483. The reversal of 2124244440 is 444424212.

2124244440 is a `hidden beast` number, since 212 + 4 + 2 + 4 + 4 + 440 = 666.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 124845 + ... + 140835.

It is an arithmetic number, because the mean of its divisors is an integer number (45715131).

Almost surely, 2^2124244440 is an apocalyptic number.

2124244440 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 2124244440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3657210480).

2124244440 is an abundant number, since it is smaller than the sum of its proper divisors (5190176520).

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

2124244440 is a wasteful number, since it uses less digits than its factorization.

2124244440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16055 (or 16042 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 2124244440 is about 46089.5263590330. The cubic root of 2124244440 is about 1285.4884041277.

Adding to 2124244440 its reverse (444424212), we get a palindrome (2568668652).

The spelling of 2124244440 in words is "two billion, one hundred twenty-four million, two hundred forty-four thousand, four hundred forty".