4006431222 has 8 divisors (see below), whose sum is σ = 8012862456. Its totient is φ = 1335477072.

The previous prime is 4006431211. The next prime is 4006431251. The reversal of 4006431222 is 2221346004.

It is a sphenic number, since it is the product of 3 distinct primes.

4006431222 is an admirable number.

It is a super-2 number, since 2×4006431222² = 32102982273232826568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4006431192 and 4006431201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333869263 + ... + 333869274.

It is an arithmetic number, because the mean of its divisors is an integer number (1001607807).

Almost surely, 2^4006431222 is an apocalyptic number.

4006431222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4006431222 is a wasteful number, since it uses less digits than its factorization.

4006431222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667738542.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4006431222 is about 63296.3760574016. The cubic root of 4006431222 is about 1588.2513404787.

Adding to 4006431222 its reverse (2221346004), we get a palindrome (6227777226).

The spelling of 4006431222 in words is "four billion, six million, four hundred thirty-one thousand, two hundred twenty-two".