1944544396 has 12 divisors (see below), whose sum is σ = 3411934120. Its totient is φ = 969706080.

The previous prime is 1944544367. The next prime is 1944544403. The reversal of 1944544396 is 6934454491.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639825 + ... + 642856.

Almost surely, 2^1944544396 is an apocalyptic number.

It is an amenable number.

1944544396 is a deficient number, since it is larger than the sum of its proper divisors (1467389724).

1944544396 is a wasteful number, since it uses less digits than its factorization.

1944544396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283064 (or 1283062 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 1944544396 is about 44096.9885139564. The cubic root of 1944544396 is about 1248.1667839160.

The spelling of 1944544396 in words is "one billion, nine hundred forty-four million, five hundred forty-four thousand, three hundred ninety-six".