199125408 has 24 divisors (see below), whose sum is σ = 522704448. Its totient is φ = 66375104.

The previous prime is 199125391. The next prime is 199125457. The reversal of 199125408 is 804521991.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×199125408² = 79301856222332928, which contains 22 as substring.

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, 1037016 + ... + 1037207.

It is an arithmetic number, because the mean of its divisors is an integer number (21779352).

Almost surely, 2^199125408 is an apocalyptic number.

It is an amenable number.

199125408 is an abundant number, since it is smaller than the sum of its proper divisors (323579040).

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

199125408 is a wasteful number, since it uses less digits than its factorization.

199125408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074236 (or 2074228 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 199125408 is about 14111.1802482996. The cubic root of 199125408 is about 583.9498612112.

The spelling of 199125408 in words is "one hundred ninety-nine million, one hundred twenty-five thousand, four hundred eight".