190218344 has 32 divisors (see below), whose sum is σ = 361307520. Its totient is φ = 93878976.

The previous prime is 190218323. The next prime is 190218359. The reversal of 190218344 is 443812091.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 190218344.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230717 + ... + 231539.

It is an arithmetic number, because the mean of its divisors is an integer number (11290860).

Almost surely, 2^190218344 is an apocalyptic number.

It is an amenable number.

190218344 is a deficient number, since it is larger than the sum of its proper divisors (171089176).

190218344 is a wasteful number, since it uses less digits than its factorization.

190218344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 190218344 is about 13791.9666472915. The cubic root of 190218344 is about 575.1098406418.

The spelling of 190218344 in words is "one hundred ninety million, two hundred eighteen thousand, three hundred forty-four".