190404027 has 30 divisors (see below), whose sum is σ = 312654804. Its totient is φ = 115390440.

The previous prime is 190404013. The next prime is 190404031. The reversal of 190404027 is 720404091.

It is a happy number.

It is not a de Polignac number, because 190404027 - 2⁶ = 190403963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (190404047) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 88 + ... + 19514.

Almost surely, 2^190404027 is an apocalyptic number.

190404027 is a deficient number, since it is larger than the sum of its proper divisors (122250777).

190404027 is a wasteful number, since it uses less digits than its factorization.

190404027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19461 (or 19441 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 190404027 is about 13798.6965688793. The cubic root of 190404027 is about 575.2969123157.

The spelling of 190404027 in words is "one hundred ninety million, four hundred four thousand, twenty-seven".