394657940103 has 32 divisors (see below), whose sum is σ = 621578797056. Its totient is φ = 218061221088.

The previous prime is 394657940087. The next prime is 394657940119. The reversal of 394657940103 is 301049756493.

394657940103 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (394657940087) and next prime (394657940119).

It is not a de Polignac number, because 394657940103 - 2⁴ = 394657940087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394657940003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2326851 + ... + 2490692.

It is an arithmetic number, because the mean of its divisors is an integer number (19424337408).

Almost surely, 2^394657940103 is an apocalyptic number.

394657940103 is a deficient number, since it is larger than the sum of its proper divisors (226920856953).

394657940103 is a wasteful number, since it uses less digits than its factorization.

394657940103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817683.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 394657940103 in words is "three hundred ninety-four billion, six hundred fifty-seven million, nine hundred forty thousand, one hundred three".