4640354423 has 4 divisors (see below), whose sum is σ = 4640641368. Its totient is φ = 4640067480.

The previous prime is 4640354353. The next prime is 4640354437. The reversal of 4640354423 is 3244530464.

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 4640354423 - 2¹² = 4640350327 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 (4640354473) 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, 117668 + ... + 152073.

It is an arithmetic number, because the mean of its divisors is an integer number (1160160342).

Almost surely, 2^4640354423 is an apocalyptic number.

4640354423 is a deficient number, since it is larger than the sum of its proper divisors (286945).

4640354423 is a wasteful number, since it uses less digits than its factorization.

4640354423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286944.

The product of its (nonzero) digits is 138240, while the sum is 35.

The square root of 4640354423 is about 68120.1469684263. The cubic root of 4640354423 is about 1667.9526493650.

Adding to 4640354423 its reverse (3244530464), we get a palindrome (7884884887).

The spelling of 4640354423 in words is "four billion, six hundred forty million, three hundred fifty-four thousand, four hundred twenty-three".