1944036416 has 28 divisors (see below), whose sum is σ = 4408797888. Its totient is φ = 833158272.

The previous prime is 1944036403. The next prime is 1944036469. The reversal of 1944036416 is 6146304491.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1944036416.

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, 2169236 + ... + 2170131.

Almost surely, 2^1944036416 is an apocalyptic number.

1944036416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1944036416 is an abundant number, since it is smaller than the sum of its proper divisors (2464761472).

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

1944036416 is an equidigital number, since it uses as much as digits as its factorization.

1944036416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339386 (or 4339376 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1944036416 is about 44091.2283339895. The cubic root of 1944036416 is about 1248.0580868208.

The spelling of 1944036416 in words is "one billion, nine hundred forty-four million, thirty-six thousand, four hundred sixteen".