190218469 has 8 divisors (see below), whose sum is σ = 217611648. Its totient is φ = 162880080.

The previous prime is 190218461. The next prime is 190218473. The reversal of 190218469 is 964812091.

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

It is a cyclic number.

It is not a de Polignac number, because 190218469 - 2³ = 190218461 is a prime.

It is a super-2 number, since 2×190218469² = 72366131897407922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190218461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5962 + ... + 20395.

It is an arithmetic number, because the mean of its divisors is an integer number (27201456).

Almost surely, 2^190218469 is an apocalyptic number.

It is an amenable number.

190218469 is a deficient number, since it is larger than the sum of its proper divisors (27393179).

190218469 is a wasteful number, since it uses less digits than its factorization.

190218469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27395.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 190218469 is about 13791.9711789142. The cubic root of 190218469 is about 575.1099666176.

The spelling of 190218469 in words is "one hundred ninety million, two hundred eighteen thousand, four hundred sixty-nine".