190161804 has 72 divisors (see below), whose sum is σ = 535277568. Its totient is φ = 51464160.

The previous prime is 190161757. The next prime is 190161821. The reversal of 190161804 is 408161091.

190161804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 27189 + ... + 33459.

Almost surely, 2^190161804 is an apocalyptic number.

190161804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190161804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267638784).

190161804 is an abundant number, since it is smaller than the sum of its proper divisors (345115764).

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

190161804 is a wasteful number, since it uses less digits than its factorization.

190161804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6323 (or 6302 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 190161804 is about 13789.9167510178. The cubic root of 190161804 is about 575.0528536167.

The spelling of 190161804 in words is "one hundred ninety million, one hundred sixty-one thousand, eight hundred four".