199493958 has 32 divisors (see below), whose sum is σ = 434476800. Its totient is φ = 60824736.

The previous prime is 199493951. The next prime is 199493981. The reversal of 199493958 is 859394991.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 199493898 and 199493907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199493951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26866 + ... + 33477.

It is an arithmetic number, because the mean of its divisors is an integer number (13577400).

Almost surely, 2^199493958 is an apocalyptic number.

199493958 is an abundant number, since it is smaller than the sum of its proper divisors (234982842).

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

199493958 is a wasteful number, since it uses less digits than its factorization.

199493958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60396.

The product of its digits is 3149280, while the sum is 57.

The square root of 199493958 is about 14124.2330057246. The cubic root of 199493958 is about 584.3099058076.

The spelling of 199493958 in words is "one hundred ninety-nine million, four hundred ninety-three thousand, nine hundred fifty-eight".