2040142393 has 4 divisors (see below), whose sum is σ = 2052658768. Its totient is φ = 2027626020.

The previous prime is 2040142387. The next prime is 2040142397. The reversal of 2040142393 is 3932410402.

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 2040142393 - 2¹⁷ = 2040011321 is a prime.

It is a super-3 number, since 3×2040142393³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040142397) 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, 6257943 + ... + 6258268.

It is an arithmetic number, because the mean of its divisors is an integer number (513164692).

Almost surely, 2^2040142393 is an apocalyptic number.

It is an amenable number.

2040142393 is a deficient number, since it is larger than the sum of its proper divisors (12516375).

2040142393 is a wasteful number, since it uses less digits than its factorization.

2040142393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12516374.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2040142393 is about 45167.9354520439. The cubic root of 2040142393 is about 1268.2946489000.

Adding to 2040142393 its reverse (3932410402), we get a palindrome (5972552795).

The spelling of 2040142393 in words is "two billion, forty million, one hundred forty-two thousand, three hundred ninety-three".