2144042340 has 48 divisors (see below), whose sum is σ = 6549076800. Its totient is φ = 519767680.

The previous prime is 2144042323. The next prime is 2144042357. The reversal of 2144042340 is 432404412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2144042323) and next prime (2144042357).

It is a self number, because there is not a number n which added to its sum of digits gives 2144042340.

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, 1623615 + ... + 1624934.

It is an arithmetic number, because the mean of its divisors is an integer number (136439100).

Almost surely, 2^2144042340 is an apocalyptic number.

2144042340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144042340 is an abundant number, since it is smaller than the sum of its proper divisors (4405034460).

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

2144042340 is a wasteful number, since it uses less digits than its factorization.

2144042340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248572 (or 3248570 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2144042340 is about 46303.8048112679. The cubic root of 2144042340 is about 1289.4696335481.

Adding to 2144042340 its reverse (432404412), we get a palindrome (2576446752).

The spelling of 2144042340 in words is "two billion, one hundred forty-four million, forty-two thousand, three hundred forty".