2143834 has 16 divisors (see below), whose sum is σ = 4009536. Its totient is φ = 835200.

The previous prime is 2143831. The next prime is 2143837. The reversal of 2143834 is 4383412.

It is an interprime number because it is at equal distance from previous prime (2143831) and next prime (2143837).

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2143799 and 2143808.

It is not an unprimeable number, because it can be changed into a prime (2143831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6807 + ... + 7114.

It is an arithmetic number, because the mean of its divisors is an integer number (250596).

2^2143834 is an apocalyptic number.

2143834 is a deficient number, since it is larger than the sum of its proper divisors (1865702).

2143834 is a wasteful number, since it uses less digits than its factorization.

2143834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941.

The product of its digits is 2304, while the sum is 25.

The square root of 2143834 is about 1464.1837316403. The cubic root of 2143834 is about 128.9427865591.

The spelling of 2143834 in words is "two million, one hundred forty-three thousand, eight hundred thirty-four".