2143944 has 48 divisors (see below), whose sum is σ = 6336720. Its totient is φ = 649440.

The previous prime is 2143943. The next prime is 2143957. The reversal of 2143944 is 4493412.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2143943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 562 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (132015).

2^2143944 is an apocalyptic number.

2143944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2143944 is an abundant number, since it is smaller than the sum of its proper divisors (4192776).

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

2143944 is a wasteful number, since it uses less digits than its factorization.

2143944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 2723 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2143944 is about 1464.2212947502. The cubic root of 2143944 is about 128.9449918704.

The spelling of 2143944 in words is "two million, one hundred forty-three thousand, nine hundred forty-four".