199964460 has 24 divisors (see below), whose sum is σ = 559900656. Its totient is φ = 53323840.

The previous prime is 199964459. The next prime is 199964473. The reversal of 199964460 is 64469991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666311 + ... + 1666430.

It is an arithmetic number, because the mean of its divisors is an integer number (23329194).

Almost surely, 2^199964460 is an apocalyptic number.

199964460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199964460 is an abundant number, since it is smaller than the sum of its proper divisors (359936196).

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

199964460 is a wasteful number, since it uses less digits than its factorization.

199964460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332753 (or 3332751 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 199964460 is about 14140.8790391545. The cubic root of 199964460 is about 584.7689057271.

The spelling of 199964460 in words is "one hundred ninety-nine million, nine hundred sixty-four thousand, four hundred sixty".