199102480 has 20 divisors (see below), whose sum is σ = 462913452. Its totient is φ = 79640960.

The previous prime is 199102471. The next prime is 199102483. The reversal of 199102480 is 84201991.

It can be written as a sum of positive squares in 2 ways, for example, as 129413376 + 69689104 = 11376^2 + 8348^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (199102483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244311 + ... + 1244470.

Almost surely, 2^199102480 is an apocalyptic number.

199102480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199102480 is an abundant number, since it is smaller than the sum of its proper divisors (263810972).

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

199102480 is a wasteful number, since it uses less digits than its factorization.

199102480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488794 (or 2488788 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 199102480 is about 14110.3678194440. The cubic root of 199102480 is about 583.9274476705.

The spelling of 199102480 in words is "one hundred ninety-nine million, one hundred two thousand, four hundred eighty".