2312040457 has 4 divisors (see below), whose sum is σ = 2391766020. Its totient is φ = 2232314896.

The previous prime is 2312040449. The next prime is 2312040503. The reversal of 2312040457 is 7540402132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1704368656 + 607671801 = 41284^2 + 24651^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312040457 - 2³ = 2312040449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312040407) 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, 39862738 + ... + 39862795.

It is an arithmetic number, because the mean of its divisors is an integer number (597941505).

Almost surely, 2^2312040457 is an apocalyptic number.

It is an amenable number.

2312040457 is a deficient number, since it is larger than the sum of its proper divisors (79725563).

2312040457 is an equidigital number, since it uses as much as digits as its factorization.

2312040457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79725562.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2312040457 is about 48083.6818161838. The cubic root of 2312040457 is about 1322.3055164785.

Adding to 2312040457 its reverse (7540402132), we get a palindrome (9852442589).

The spelling of 2312040457 in words is "two billion, three hundred twelve million, forty thousand, four hundred fifty-seven".