4253940823 has 4 divisors (see below), whose sum is σ = 4640662728. Its totient is φ = 3867218920.

The previous prime is 4253940811. The next prime is 4253940829. The reversal of 4253940823 is 3280493524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4253940823 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 (4253940829) 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, 193360936 + ... + 193360957.

It is an arithmetic number, because the mean of its divisors is an integer number (1160165682).

Almost surely, 2^4253940823 is an apocalyptic number.

4253940823 is a deficient number, since it is larger than the sum of its proper divisors (386721905).

4253940823 is a wasteful number, since it uses less digits than its factorization.

4253940823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386721904.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 4253940823 is about 65222.2417814659. The cubic root of 4253940823 is about 1620.3064023145.

The spelling of 4253940823 in words is "four billion, two hundred fifty-three million, nine hundred forty thousand, eight hundred twenty-three".