199358406 has 48 divisors (see below), whose sum is σ = 476011536. Its totient is φ = 59911488.

The previous prime is 199358389. The next prime is 199358413. The reversal of 199358406 is 604853991.

It is a happy number.

199358406 is a `hidden beast` number, since 199 + 3 + 58 + 406 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156 + ... + 19968.

It is an arithmetic number, because the mean of its divisors is an integer number (9916907).

Almost surely, 2^199358406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199358406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238005768).

199358406 is an abundant number, since it is smaller than the sum of its proper divisors (276653130).

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

199358406 is a wasteful number, since it uses less digits than its factorization.

199358406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19877 (or 19874 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 199358406 is about 14119.4336288677. The cubic root of 199358406 is about 584.1775336743.

The spelling of 199358406 in words is "one hundred ninety-nine million, three hundred fifty-eight thousand, four hundred six".