1899385344 has 60 divisors (see below), whose sum is σ = 5481768006. Its totient is φ = 633126912.

The previous prime is 1899385339. The next prime is 1899385357. The reversal of 1899385344 is 4435839981.

1899385344 is a `hidden beast` number, since 18 + 9 + 93 + 8 + 534 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1278777600 + 620607744 = 35760^2 + 24912^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201489 + ... + 210704.

Almost surely, 2^1899385344 is an apocalyptic number.

It is an amenable number.

1899385344 is an abundant number, since it is smaller than the sum of its proper divisors (3582382662).

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

1899385344 is an equidigital number, since it uses as much as digits as its factorization.

1899385344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412217 (or 412198 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 1899385344 is about 43581.9382772267. The cubic root of 1899385344 is about 1238.4287556170.

The spelling of 1899385344 in words is "one billion, eight hundred ninety-nine million, three hundred eighty-five thousand, three hundred forty-four".