199993356 has 36 divisors (see below), whose sum is σ = 507786552. Its totient is φ = 66368064.

The previous prime is 199993333. The next prime is 199993357. The reversal of 199993356 is 653399991.

It is a happy number.

199993356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (199993357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4065 + ... + 20408.

It is an arithmetic number, because the mean of its divisors is an integer number (14105182).

Almost surely, 2^199993356 is an apocalyptic number.

It is an amenable number.

199993356 is an abundant number, since it is smaller than the sum of its proper divisors (307793196).

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

199993356 is a wasteful number, since it uses less digits than its factorization.

199993356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24710 (or 24705 counting only the distinct ones).

The product of its digits is 1771470, while the sum is 54.

The square root of 199993356 is about 14141.9007209074. The cubic root of 199993356 is about 584.7970718462.

The spelling of 199993356 in words is "one hundred ninety-nine million, nine hundred ninety-three thousand, three hundred fifty-six".