199008134240 has 24 divisors (see below), whose sum is σ = 470156717520. Its totient is φ = 79603253632.

The previous prime is 199008134209. The next prime is 199008134257. The reversal of 199008134240 is 42431800991.

It is a congruent number.

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, 621900260 + ... + 621900579.

It is an arithmetic number, because the mean of its divisors is an integer number (19589863230).

Almost surely, 2^199008134240 is an apocalyptic number.

199008134240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199008134240 is an abundant number, since it is smaller than the sum of its proper divisors (271148583280).

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

199008134240 is a wasteful number, since it uses less digits than its factorization.

199008134240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243800854 (or 1243800846 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 199008134240 in words is "one hundred ninety-nine billion, eight million, one hundred thirty-four thousand, two hundred forty".