3900218429 has 2 divisors, whose sum is σ = 3900218430. Its totient is φ = 3900218428.

The previous prime is 3900218419. The next prime is 3900218453. The reversal of 3900218429 is 9248120093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2516527225 + 1383691204 = 50165^2 + 37198^2 .

It is a cyclic number.

It is not a de Polignac number, because 3900218429 - 2⁸ = 3900218173 is a prime.

It is a super-2 number, since 2×3900218429² = 30423407587822456082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3900218392 and 3900218401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3900218419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1950109214 + 1950109215.

It is an arithmetic number, because the mean of its divisors is an integer number (1950109215).

Almost surely, 2^3900218429 is an apocalyptic number.

It is an amenable number.

3900218429 is a deficient number, since it is larger than the sum of its proper divisors (1).

3900218429 is an equidigital number, since it uses as much as digits as its factorization.

3900218429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 3900218429 is about 62451.7287911231. The cubic root of 3900218429 is about 1574.0903024548.

The spelling of 3900218429 in words is "three billion, nine hundred million, two hundred eighteen thousand, four hundred twenty-nine".