2143734 has 16 divisors (see below), whose sum is σ = 4539888. Its totient is φ = 672512.

The previous prime is 2143733. The next prime is 2143741. The reversal of 2143734 is 4373412.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2⁹ + 1 + 4⁵ + 3¹² + 7² + 3¹³ + 4⁷ .

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143733) 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, 10407 + ... + 10610.

It is an arithmetic number, because the mean of its divisors is an integer number (283743).

2^2143734 is an apocalyptic number.

2143734 is an abundant number, since it is smaller than the sum of its proper divisors (2396154).

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

2143734 is a wasteful number, since it uses less digits than its factorization.

2143734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21039.

The product of its digits is 2016, while the sum is 24.

The square root of 2143734 is about 1464.1495825222. The cubic root of 2143734 is about 128.9407816652.

The spelling of 2143734 in words is "two million, one hundred forty-three thousand, seven hundred thirty-four".