2140434231 has 32 divisors (see below), whose sum is σ = 3124541952. Its totient is φ = 1295387520.

The previous prime is 2140434221. The next prime is 2140434239. The reversal of 2140434231 is 1324340412.

It is not a de Polignac number, because 2140434231 - 2⁷ = 2140434103 is a prime.

It is a super-2 number, since 2×2140434231² = 9162917394473122722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140434239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1558261 + ... + 1559633.

It is an arithmetic number, because the mean of its divisors is an integer number (97641936).

Almost surely, 2^2140434231 is an apocalyptic number.

2140434231 is a deficient number, since it is larger than the sum of its proper divisors (984107721).

2140434231 is a wasteful number, since it uses less digits than its factorization.

2140434231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2140434231 is about 46264.8271476291. The cubic root of 2140434231 is about 1288.7458979518.

Adding to 2140434231 its reverse (1324340412), we get a palindrome (3464774643).

The spelling of 2140434231 in words is "two billion, one hundred forty million, four hundred thirty-four thousand, two hundred thirty-one".