4220342431 has 4 divisors (see below), whose sum is σ = 4222768264. Its totient is φ = 4217916600.

The previous prime is 4220342351. The next prime is 4220342437. The reversal of 4220342431 is 1342430224.

It is a happy number.

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-4220342431 is a prime.

It is a super-2 number, since 2×4220342431² = 35622580469797979522, 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 = 4220342396 and 4220342405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220342437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1210305 + ... + 1213786.

It is an arithmetic number, because the mean of its divisors is an integer number (1055692066).

Almost surely, 2^4220342431 is an apocalyptic number.

4220342431 is a deficient number, since it is larger than the sum of its proper divisors (2425833).

4220342431 is a wasteful number, since it uses less digits than its factorization.

4220342431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425832.

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

The square root of 4220342431 is about 64964.1626668119. The cubic root of 4220342431 is about 1616.0292979394.

Adding to 4220342431 its reverse (1342430224), we get a palindrome (5562772655).

The spelling of 4220342431 in words is "four billion, two hundred twenty million, three hundred forty-two thousand, four hundred thirty-one".