190660404 has 48 divisors (see below), whose sum is σ = 486311616. Its totient is φ = 57657600.

The previous prime is 190660369. The next prime is 190660429. The reversal of 190660404 is 404066091.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80274 + ... + 82614.

It is an arithmetic number, because the mean of its divisors is an integer number (10131492).

Almost surely, 2^190660404 is an apocalyptic number.

It is an amenable number.

190660404 is an abundant number, since it is smaller than the sum of its proper divisors (295651212).

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

190660404 is a wasteful number, since it uses less digits than its factorization.

190660404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976 (or 2974 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 190660404 is about 13807.9833429795. The cubic root of 190660404 is about 575.5550069038. Note that the first 3 decimals are identical.

The spelling of 190660404 in words is "one hundred ninety million, six hundred sixty thousand, four hundred four".