190660000 has 60 divisors (see below), whose sum is σ = 469101402. Its totient is φ = 76256000.

The previous prime is 190659977. The next prime is 190660021. The reversal of 190660000 is 66091.

It can be written as a sum of positive squares in 5 ways, for example, as 992016 + 189667984 = 996^2 + 13772^2 .

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, 15234 + ... + 24766.

Almost surely, 2^190660000 is an apocalyptic number.

190660000 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 190660000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234550701).

190660000 is an abundant number, since it is smaller than the sum of its proper divisors (278441402).

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

190660000 is an frugal number, since it uses more digits than its factorization.

190660000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9563 (or 9540 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 190660000 is about 13807.9687137537. The cubic root of 190660000 is about 575.5546003793.

The spelling of 190660000 in words is "one hundred ninety million, six hundred sixty thousand".