1599481944 has 32 divisors (see below), whose sum is σ = 4443006000. Its totient is φ = 533160576.

The previous prime is 1599481909. The next prime is 1599481963. The reversal of 1599481944 is 4491849951.

1599481944 is a `hidden beast` number, since 1 + 599 + 4 + 8 + 1 + 9 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 3702289 + ... + 3702720.

Almost surely, 2^1599481944 is an apocalyptic number.

It is an amenable number.

1599481944 is an abundant number, since it is smaller than the sum of its proper divisors (2843524056).

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

1599481944 is a wasteful number, since it uses less digits than its factorization.

1599481944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7405024 (or 7405014 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 1599481944 is about 39993.5237757315. The cubic root of 1599481944 is about 1169.4808479140.

The spelling of 1599481944 in words is "one billion, five hundred ninety-nine million, four hundred eighty-one thousand, nine hundred forty-four".