4201440431 has 4 divisors (see below), whose sum is σ = 4299148392. Its totient is φ = 4103732472.

The previous prime is 4201440427. The next prime is 4201440449. The reversal of 4201440431 is 1340441024.

It is a happy number.

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 4201440431 - 2² = 4201440427 is a prime.

It is a super-2 number, since 2×4201440431² = 35304203390482931522, 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 = 4201440397 and 4201440406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4201440421) 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, 48853916 + ... + 48854001.

It is an arithmetic number, because the mean of its divisors is an integer number (1074787098).

Almost surely, 2^4201440431 is an apocalyptic number.

4201440431 is a deficient number, since it is larger than the sum of its proper divisors (97707961).

4201440431 is an equidigital number, since it uses as much as digits as its factorization.

4201440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97707960.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4201440431 is about 64818.5191978342. The cubic root of 4201440431 is about 1613.6130719774.

Adding to 4201440431 its reverse (1340441024), we get a palindrome (5541881455).

The spelling of 4201440431 in words is "four billion, two hundred one million, four hundred forty thousand, four hundred thirty-one".