2143434 has 8 divisors (see below), whose sum is σ = 4286880. Its totient is φ = 714476.

The previous prime is 2143417. The next prime is 2143441. The reversal of 2143434 is 4343412.

It is a sphenic number, since it is the product of 3 distinct primes.

2143434 is an admirable number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2143434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178614 + ... + 178625.

It is an arithmetic number, because the mean of its divisors is an integer number (535860).

2^2143434 is an apocalyptic number.

2143434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2143434 is a wasteful number, since it uses less digits than its factorization.

2143434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357244.

The product of its digits is 1152, while the sum is 21.

The square root of 2143434 is about 1464.0471303889. The cubic root of 2143434 is about 128.9347666094.

Adding to 2143434 its reverse (4343412), we get a palindrome (6486846).

The spelling of 2143434 in words is "two million, one hundred forty-three thousand, four hundred thirty-four".