199961484 has 24 divisors (see below), whose sum is σ = 466831680. Its totient is φ = 66617424.

The previous prime is 199961483. The next prime is 199961507. The reversal of 199961484 is 484169991.

It is not an unprimeable number, because it can be changed into a prime (199961483) 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, 27187 + ... + 33749.

It is an arithmetic number, because the mean of its divisors is an integer number (19451320).

Almost surely, 2^199961484 is an apocalyptic number.

It is an amenable number.

199961484 is an abundant number, since it is smaller than the sum of its proper divisors (266870196).

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

199961484 is a wasteful number, since it uses less digits than its factorization.

199961484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9109 (or 9107 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 199961484 is about 14140.7738119242. The cubic root of 199961484 is about 584.7660047434.

The spelling of 199961484 in words is "one hundred ninety-nine million, nine hundred sixty-one thousand, four hundred eighty-four".