1963395394 has 16 divisors (see below), whose sum is σ = 3018150432. Its totient is φ = 957414528.

The previous prime is 1963395389. The next prime is 1963395397. The reversal of 1963395394 is 4935933691.

It is not an unprimeable number, because it can be changed into a prime (1963395397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40917 + ... + 74839.

It is an arithmetic number, because the mean of its divisors is an integer number (188634402).

Almost surely, 2^1963395394 is an apocalyptic number.

1963395394 is a deficient number, since it is larger than the sum of its proper divisors (1054755038).

1963395394 is a wasteful number, since it uses less digits than its factorization.

1963395394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34641.

The product of its digits is 2361960, while the sum is 52.

The square root of 1963395394 is about 44310.2177155563. The cubic root of 1963395394 is about 1252.1871881210.

The spelling of 1963395394 in words is "one billion, nine hundred sixty-three million, three hundred ninety-five thousand, three hundred ninety-four".