199024838884 has 9 divisors (see below), whose sum is σ = 348295029481. Its totient is φ = 99511973320.

The previous prime is 199024838869. The next prime is 199024838951. The reversal of 199024838884 is 488838420991.

It is a happy number.

The square root of 199024838884 is 446122.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 76384798884 + 122640040000 = 276378^2 + 350200^2 .

It is a super-2 number, since 2×199024838884² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 780714 + ... + 1003774.

Almost surely, 2^199024838884 is an apocalyptic number.

199024838884 is the 446122-nd square number.

It is an amenable number.

199024838884 is a deficient number, since it is larger than the sum of its proper divisors (149270190597).

199024838884 is an frugal number, since it uses more digits than its factorization.

199024838884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446126 (or 223063 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 64.

Multiplying 199024838884 by its sum of digits (64), we get a square (12737589688576 = 3568976²).

The spelling of 199024838884 in words is "one hundred ninety-nine billion, twenty-four million, eight hundred thirty-eight thousand, eight hundred eighty-four".