199522920 has 64 divisors (see below), whose sum is σ = 602640000. Its totient is φ = 52844288.

The previous prime is 199522909. The next prime is 199522957. The reversal of 199522920 is 29225991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12301 + ... + 23459.

It is an arithmetic number, because the mean of its divisors is an integer number (9416250).

Almost surely, 2^199522920 is an apocalyptic number.

199522920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199522920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301320000).

199522920 is an abundant number, since it is smaller than the sum of its proper divisors (403117080).

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

199522920 is a wasteful number, since it uses less digits than its factorization.

199522920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322 (or 11318 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 199522920 is about 14125.2582277281. The cubic root of 199522920 is about 584.3381806232.

The spelling of 199522920 in words is "one hundred ninety-nine million, five hundred twenty-two thousand, nine hundred twenty".