2640301423 has 4 divisors (see below), whose sum is σ = 2673723040. Its totient is φ = 2606879808.

The previous prime is 2640301409. The next prime is 2640301439. The reversal of 2640301423 is 3241030462.

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

It is a cyclic number.

It is not a de Polignac number, because 2640301423 - 2¹³ = 2640293231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640301453) 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, 16710690 + ... + 16710847.

It is an arithmetic number, because the mean of its divisors is an integer number (668430760).

Almost surely, 2^2640301423 is an apocalyptic number.

2640301423 is a deficient number, since it is larger than the sum of its proper divisors (33421617).

2640301423 is an equidigital number, since it uses as much as digits as its factorization.

2640301423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33421616.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 2640301423 is about 51383.8634495305. The cubic root of 2640301423 is about 1382.1372440131.

Adding to 2640301423 its reverse (3241030462), we get a palindrome (5881331885).

The spelling of 2640301423 in words is "two billion, six hundred forty million, three hundred one thousand, four hundred twenty-three".