190688482 has 8 divisors (see below), whose sum is σ = 286844076. Its totient is φ = 95073792.

The previous prime is 190688461. The next prime is 190688489. The reversal of 190688482 is 284886091.

It is a Cunningham number, because it is equal to 13809²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 190688481 + 1 = 13809^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×190688482³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (190688489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134343 + ... + 135754.

Almost surely, 2^190688482 is an apocalyptic number.

190688482 is a deficient number, since it is larger than the sum of its proper divisors (96155594).

190688482 is a wasteful number, since it uses less digits than its factorization.

190688482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270452.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 190688482 is about 13809.0000362083. Note that the first 4 decimals coincide. The cubic root of 190688482 is about 575.5832589511.

The spelling of 190688482 in words is "one hundred ninety million, six hundred eighty-eight thousand, four hundred eighty-two".