4206640231 has 2 divisors, whose sum is σ = 4206640232. Its totient is φ = 4206640230.

The previous prime is 4206640219. The next prime is 4206640237. The reversal of 4206640231 is 1320466024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4206640231 - 2⁷ = 4206640103 is a prime.

It is a super-2 number, since 2×4206640231² = 35391644066135466722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4206640231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4206640237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103320115 + 2103320116.

It is an arithmetic number, because the mean of its divisors is an integer number (2103320116).

Almost surely, 2^4206640231 is an apocalyptic number.

4206640231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4206640231 is an equidigital number, since it uses as much as digits as its factorization.

4206640231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4206640231 is about 64858.6172455133. The cubic root of 4206640231 is about 1614.2784791836.

The spelling of 4206640231 in words is "four billion, two hundred six million, six hundred forty thousand, two hundred thirty-one".