4042456403 has 4 divisors (see below), whose sum is σ = 4043303208. Its totient is φ = 4041609600.

The previous prime is 4042456399. The next prime is 4042456447. The reversal of 4042456403 is 3046542404.

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 4042456403 - 2² = 4042456399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4042456403.

It is not an unprimeable number, because it can be changed into a prime (4042456493) 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, 416201 + ... + 425802.

It is an arithmetic number, because the mean of its divisors is an integer number (1010825802).

Almost surely, 2^4042456403 is an apocalyptic number.

4042456403 is a deficient number, since it is larger than the sum of its proper divisors (846805).

4042456403 is an equidigital number, since it uses as much as digits as its factorization.

4042456403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846804.

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 4042456403 is about 63580.3145871425. The cubic root of 4042456403 is about 1592.9975759679.

Adding to 4042456403 its reverse (3046542404), we get a palindrome (7088998807).

The spelling of 4042456403 in words is "four billion, forty-two million, four hundred fifty-six thousand, four hundred three".