1943949168 has 90 divisors (see below), whose sum is σ = 6328602384. Its totient is φ = 555412032.

The previous prime is 1943949157. The next prime is 1943949191. The reversal of 1943949168 is 8619493491.

It is a happy number.

1943949168 is a `hidden beast` number, since 1 + 9 + 439 + 49 + 168 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 130696 + ... + 144807.

Almost surely, 2^1943949168 is an apocalyptic number.

1943949168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1943949168 is an abundant number, since it is smaller than the sum of its proper divisors (4384653216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1943949168 is a wasteful number, since it uses less digits than its factorization.

1943949168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275531 (or 275515 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 1943949168 is about 44090.2389197428. The cubic root of 1943949168 is about 1248.0394156683.

The spelling of 1943949168 in words is "one billion, nine hundred forty-three million, nine hundred forty-nine thousand, one hundred sixty-eight".