4003420431 has 4 divisors (see below), whose sum is σ = 5337893912. Its totient is φ = 2668946952.

The previous prime is 4003420427. The next prime is 4003420459. The reversal of 4003420431 is 1340243004.

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

It is not a de Polignac number, because 4003420431 - 2² = 4003420427 is a prime.

It is a super-2 number, since 2×4003420431² = 32054750294696451522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4003420398 and 4003420407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003420481) 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, 667236736 + ... + 667236741.

It is an arithmetic number, because the mean of its divisors is an integer number (1334473478).

Almost surely, 2^4003420431 is an apocalyptic number.

4003420431 is a deficient number, since it is larger than the sum of its proper divisors (1334473481).

4003420431 is a wasteful number, since it uses less digits than its factorization.

4003420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334473480.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4003420431 is about 63272.5883064697. The cubic root of 4003420431 is about 1587.8533893742.

Adding to 4003420431 its reverse (1340243004), we get a palindrome (5343663435).

The spelling of 4003420431 in words is "four billion, three million, four hundred twenty thousand, four hundred thirty-one".