1944243892 has 24 divisors (see below), whose sum is σ = 3437317800. Its totient is φ = 962203776.

The previous prime is 1944243881. The next prime is 1944243901. The reversal of 1944243892 is 2983424491.

It can be written as a sum of positive squares in 4 ways, for example, as 1645438096 + 298805796 = 40564^2 + 17286^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152334 + ... + 164602.

It is an arithmetic number, because the mean of its divisors is an integer number (143221575).

Almost surely, 2^1944243892 is an apocalyptic number.

It is an amenable number.

1944243892 is a deficient number, since it is larger than the sum of its proper divisors (1493073908).

1944243892 is a wasteful number, since it uses less digits than its factorization.

1944243892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12675 (or 12673 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 1944243892 is about 44093.5810748004. The cubic root of 1944243892 is about 1248.1024846325.

The spelling of 1944243892 in words is "one billion, nine hundred forty-four million, two hundred forty-three thousand, eight hundred ninety-two".