418985 has 8 divisors (see below), whose sum is σ = 574656. Its totient is φ = 287280.

The previous prime is 418981. The next prime is 418987. The reversal of 418985 is 589814.

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

It is not a de Polignac number, because 418985 - 2² = 418981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 11971 = 418985 / (4 + 1 + 8 + 9 + 8 + 5).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (418981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5951 + ... + 6020.

It is an arithmetic number, because the mean of its divisors is an integer number (71832).

2⁴¹⁸⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

418985 is a deficient number, since it is larger than the sum of its proper divisors (155671).

418985 is a wasteful number, since it uses less digits than its factorization.

418985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11983.

The product of its digits is 11520, while the sum is 35.

The square root of 418985 is about 647.2905066506. The cubic root of 418985 is about 74.8283481825.

The spelling of 418985 in words is "four hundred eighteen thousand, nine hundred eighty-five".