3938442427 has 2 divisors, whose sum is σ = 3938442428. Its totient is φ = 3938442426.

The previous prime is 3938442413. The next prime is 3938442433. The reversal of 3938442427 is 7242448393.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3938442427 - 2¹¹ = 3938440379 is a prime.

It is a super-2 number, since 2×3938442427² = 31022657501587300658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3938442407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969221213 + 1969221214.

It is an arithmetic number, because the mean of its divisors is an integer number (1969221214).

Almost surely, 2^3938442427 is an apocalyptic number.

3938442427 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938442427 is an equidigital number, since it uses as much as digits as its factorization.

3938442427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 46.

The square root of 3938442427 is about 62757.0109788540. The cubic root of 3938442427 is about 1579.2158725986.

The spelling of 3938442427 in words is "three billion, nine hundred thirty-eight million, four hundred forty-two thousand, four hundred twenty-seven".