418642 has 16 divisors (see below), whose sum is σ = 760320. Its totient is φ = 168768.

The previous prime is 418637. The next prime is 418657. The reversal of 418642 is 246814.

418642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×418642² = 350522248328, which contains 22 as substring.

It is an unprimeable number.

418642 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 7 ways as a sum of consecutive naturals, for example, 642 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (47520).

2⁴¹⁸⁶⁴² is an apocalyptic number.

418642 is a deficient number, since it is larger than the sum of its proper divisors (341678).

418642 is a wasteful number, since it uses less digits than its factorization.

418642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785.

The product of its digits is 1536, while the sum is 25.

The square root of 418642 is about 647.0255018158. The cubic root of 418642 is about 74.8079233221.

The spelling of 418642 in words is "four hundred eighteen thousand, six hundred forty-two".