190418 has 8 divisors (see below), whose sum is σ = 300720. Its totient is φ = 90180.

The previous prime is 190409. The next prime is 190471. The reversal of 190418 is 814091.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 190393 and 190402.

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 3 ways as a sum of consecutive naturals, for example, 2468 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (37590).

2¹⁹⁰⁴¹⁸ is an apocalyptic number.

190418 is a deficient number, since it is larger than the sum of its proper divisors (110302).

190418 is a wasteful number, since it uses less digits than its factorization.

190418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 190418 is about 436.3691098142. The cubic root of 190418 is about 57.5310984895.

The spelling of 190418 in words is "one hundred ninety thousand, four hundred eighteen".