3942945403 has 2 divisors, whose sum is σ = 3942945404. Its totient is φ = 3942945402.

The previous prime is 3942945353. The next prime is 3942945421. The reversal of 3942945403 is 3045492493.

3942945403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3942945403 - 2⁹ = 3942944891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3942945403.

It is not a weakly prime, because it can be changed into another prime (3942945443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971472701 + 1971472702.

It is an arithmetic number, because the mean of its divisors is an integer number (1971472702).

Almost surely, 2^3942945403 is an apocalyptic number.

3942945403 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942945403 is an equidigital number, since it uses as much as digits as its factorization.

3942945403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 3942945403 is about 62792.8770084633. The cubic root of 3942945403 is about 1579.8175032233.

The spelling of 3942945403 in words is "three billion, nine hundred forty-two million, nine hundred forty-five thousand, four hundred three".