199479880 has 16 divisors (see below), whose sum is σ = 448829820. Its totient is φ = 79791936.

The previous prime is 199479877. The next prime is 199479901. The reversal of 199479880 is 88974991.

199479880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 176305284 + 23174596 = 13278^2 + 4814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493459 + ... + 2493538.

Almost surely, 2^199479880 is an apocalyptic number.

199479880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199479880 is an abundant number, since it is smaller than the sum of its proper divisors (249349940).

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

199479880 is a wasteful number, since it uses less digits than its factorization.

199479880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987008 (or 4987004 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 199479880 is about 14123.7346335875. The cubic root of 199479880 is about 584.2961608494.

The spelling of 199479880 in words is "one hundred ninety-nine million, four hundred seventy-nine thousand, eight hundred eighty".