1944226544 has 40 divisors (see below), whose sum is σ = 4087727952. Its totient is φ = 890472960.

The previous prime is 1944226541. The next prime is 1944226549. The reversal of 1944226544 is 4456224491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944226541) 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, 8429 + ... + 62924.

Almost surely, 2^1944226544 is an apocalyptic number.

It is an amenable number.

1944226544 is an abundant number, since it is smaller than the sum of its proper divisors (2143501408).

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

1944226544 is a wasteful number, since it uses less digits than its factorization.

1944226544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71505 (or 71499 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 1944226544 is about 44093.3843563862. The cubic root of 1944226544 is about 1248.0987724531.

The spelling of 1944226544 in words is "one billion, nine hundred forty-four million, two hundred twenty-six thousand, five hundred forty-four".