2144030440 has 64 divisors (see below), whose sum is σ = 4970730960. Its totient is φ = 831928320.

The previous prime is 2144030423. The next prime is 2144030459. The reversal of 2144030440 is 440304412.

It can be written as a sum of positive squares in 8 ways, for example, as 20848356 + 2123182084 = 4566^2 + 46078^2 .

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, 172102 + ... + 184138.

Almost surely, 2^2144030440 is an apocalyptic number.

2144030440 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 2144030440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485365480).

2144030440 is an abundant number, since it is smaller than the sum of its proper divisors (2826700520).

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

2144030440 is a wasteful number, since it uses less digits than its factorization.

2144030440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12182 (or 12178 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2144030440 is about 46303.6763119301. The cubic root of 2144030440 is about 1289.4672479116.

Adding to 2144030440 its reverse (440304412), we get a palindrome (2584334852).

The spelling of 2144030440 in words is "two billion, one hundred forty-four million, thirty thousand, four hundred forty".