2140423393 has 4 divisors (see below), whose sum is σ = 2167517440. Its totient is φ = 2113329348.

The previous prime is 2140423357. The next prime is 2140423421. The reversal of 2140423393 is 3933240412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2140423393 - 2⁹ = 2140422881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140423343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13546905 + ... + 13547062.

It is an arithmetic number, because the mean of its divisors is an integer number (541879360).

Almost surely, 2^2140423393 is an apocalyptic number.

It is an amenable number.

2140423393 is a deficient number, since it is larger than the sum of its proper divisors (27094047).

2140423393 is an equidigital number, since it uses as much as digits as its factorization.

2140423393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27094046.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 2140423393 is about 46264.7100174636. The cubic root of 2140423393 is about 1288.7437227777.

The spelling of 2140423393 in words is "two billion, one hundred forty million, four hundred twenty-three thousand, three hundred ninety-three".