4042322431 has 4 divisors (see below), whose sum is σ = 4619797072. Its totient is φ = 3464847792.

The previous prime is 4042322387. The next prime is 4042322491. The reversal of 4042322431 is 1342232404.

It is a happy number.

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

It is not a de Polignac number, because 4042322431 - 2¹⁷ = 4042191359 is a prime.

It is a super-2 number, since 2×4042322431² = 32680741272331499522, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 4042322396 and 4042322405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042322491) 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, 288737310 + ... + 288737323.

It is an arithmetic number, because the mean of its divisors is an integer number (1154949268).

Almost surely, 2^4042322431 is an apocalyptic number.

4042322431 is a deficient number, since it is larger than the sum of its proper divisors (577474641).

4042322431 is an equidigital number, since it uses as much as digits as its factorization.

4042322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577474640.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4042322431 is about 63579.2610133210. The cubic root of 4042322431 is about 1592.9799778041.

Adding to 4042322431 its reverse (1342232404), we get a palindrome (5384554835).

The spelling of 4042322431 in words is "four billion, forty-two million, three hundred twenty-two thousand, four hundred thirty-one".