419990 has 8 divisors (see below), whose sum is σ = 756000. Its totient is φ = 167992.

The previous prime is 419959. The next prime is 419999. The reversal of 419990 is 99914.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419999) by changing a digit.

419990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20990 + ... + 21009.

It is an arithmetic number, because the mean of its divisors is an integer number (94500).

2⁴¹⁹⁹⁹⁰ is an apocalyptic number.

419990 is a deficient number, since it is larger than the sum of its proper divisors (336010).

419990 is a wasteful number, since it uses less digits than its factorization.

419990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42006.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 419990 is about 648.0663546274. The cubic root of 419990 is about 74.8881295125. Note that the first 3 decimals are identical.

The spelling of 419990 in words is "four hundred nineteen thousand, nine hundred ninety".