190790000 has 50 divisors (see below), whose sum is σ = 461945880. Its totient is φ = 76312000.

The previous prime is 190789987. The next prime is 190790021. The reversal of 190790000 is 97091.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 461 + ... + 19539.

Almost surely, 2^190790000 is an apocalyptic number.

190790000 is a gapful number since it is divisible by the number (10) 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 190790000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230972940).

190790000 is an abundant number, since it is smaller than the sum of its proper divisors (271155880).

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

190790000 is an equidigital number, since it uses as much as digits as its factorization.

190790000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19107 (or 19086 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 190790000 is about 13812.6753382536. The cubic root of 190790000 is about 575.6853830970.

The spelling of 190790000 in words is "one hundred ninety million, seven hundred ninety thousand".