199013886 has 24 divisors (see below), whose sum is σ = 440373024. Its totient is φ = 64926240.

The previous prime is 199013821. The next prime is 199013891. The reversal of 199013886 is 688310991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116775 + ... + 118466.

It is an arithmetic number, because the mean of its divisors is an integer number (18348876).

Almost surely, 2^199013886 is an apocalyptic number.

199013886 is an abundant number, since it is smaller than the sum of its proper divisors (241359138).

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

199013886 is a wasteful number, since it uses less digits than its factorization.

199013886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235296 (or 235293 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 199013886 is about 14107.2281473009. The cubic root of 199013886 is about 583.8408253722.

It can be divided in two parts, 1990 and 13886, that added together give a square (15876 = 126²).

The spelling of 199013886 in words is "one hundred ninety-nine million, thirteen thousand, eight hundred eighty-six".