190983904 has 48 divisors (see below), whose sum is σ = 401980320. Its totient is φ = 89098240.

The previous prime is 190983887. The next prime is 190983911. The reversal of 190983904 is 409389091.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27012 + ... + 33340.

It is an arithmetic number, because the mean of its divisors is an integer number (8374590).

Almost surely, 2^190983904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190983904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200990160).

190983904 is an abundant number, since it is smaller than the sum of its proper divisors (210996416).

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

190983904 is a wasteful number, since it uses less digits than its factorization.

190983904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403 (or 6395 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 190983904 is about 13819.6926159738. The cubic root of 190983904 is about 575.8803442293.

The spelling of 190983904 in words is "one hundred ninety million, nine hundred eighty-three thousand, nine hundred four".