1943949172 has 12 divisors (see below), whose sum is σ = 3711175776. Its totient is φ = 883613240.

The previous prime is 1943949157. The next prime is 1943949191. The reversal of 1943949172 is 2719493491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22090288 + ... + 22090375.

It is an arithmetic number, because the mean of its divisors is an integer number (309264648).

Almost surely, 2^1943949172 is an apocalyptic number.

It is an amenable number.

1943949172 is a deficient number, since it is larger than the sum of its proper divisors (1767226604).

1943949172 is a wasteful number, since it uses less digits than its factorization.

1943949172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44180678 (or 44180676 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 1943949172 is about 44090.2389651043. The cubic root of 1943949172 is about 1248.0394165244.

The spelling of 1943949172 in words is "one billion, nine hundred forty-three million, nine hundred forty-nine thousand, one hundred seventy-two".