199982520 has 80 divisors (see below), whose sum is σ = 672174360. Its totient is φ = 53327808.

The previous prime is 199982513. The next prime is 199982557. The reversal of 199982520 is 25289991.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27622 + ... + 34101.

Almost surely, 2^199982520 is an apocalyptic number.

199982520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199982520 is an abundant number, since it is smaller than the sum of its proper divisors (472191840).

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

199982520 is a wasteful number, since it uses less digits than its factorization.

199982520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61746 (or 61733 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 199982520 is about 14141.5175989001. The cubic root of 199982520 is about 584.7865098695.

The spelling of 199982520 in words is "one hundred ninety-nine million, nine hundred eighty-two thousand, five hundred twenty".