418945 has 8 divisors (see below), whose sum is σ = 524736. Its totient is φ = 320496.

The previous prime is 418939. The next prime is 418961. The reversal of 418945 is 549814.

It is a happy number.

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 418945 - 2¹⁷ = 287873 is a prime.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1707 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (65592).

2⁴¹⁸⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

418945 is a deficient number, since it is larger than the sum of its proper divisors (105791).

418945 is a wasteful number, since it uses less digits than its factorization.

418945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671.

The product of its digits is 5760, while the sum is 31.

The square root of 418945 is about 647.2596078854. The cubic root of 418945 is about 74.8259668489.

The spelling of 418945 in words is "four hundred eighteen thousand, nine hundred forty-five".