1943019946 has 16 divisors (see below), whose sum is σ = 3385497600. Its totient is φ = 819071280.

The previous prime is 1943019943. The next prime is 1943019959. The reversal of 1943019946 is 6499103491.

It is a junction number, because it is equal to n+sod(n) for n = 1943019896 and 1943019905.

It is not an unprimeable number, because it can be changed into a prime (1943019943) 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, 1136746 + ... + 1138453.

It is an arithmetic number, because the mean of its divisors is an integer number (211593600).

Almost surely, 2^1943019946 is an apocalyptic number.

1943019946 is a deficient number, since it is larger than the sum of its proper divisors (1442477654).

1943019946 is a wasteful number, since it uses less digits than its factorization.

1943019946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275269.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 1943019946 is about 44079.6999309206. The cubic root of 1943019946 is about 1247.8405266348.

The spelling of 1943019946 in words is "one billion, nine hundred forty-three million, nineteen thousand, nine hundred forty-six".