918642 has 8 divisors (see below), whose sum is σ = 1837296. Its totient is φ = 306212.

The previous prime is 918641. The next prime is 918647. The reversal of 918642 is 246819.

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

918642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (918641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76548 + ... + 76559.

It is an arithmetic number, because the mean of its divisors is an integer number (229662).

2⁹¹⁸⁶⁴² is an apocalyptic number.

918642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

918642 is a wasteful number, since it uses less digits than its factorization.

918642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153112.

The product of its digits is 3456, while the sum is 30.

The square root of 918642 is about 958.4581368010. The cubic root of 918642 is about 97.2110048676.

The spelling of 918642 in words is "nine hundred eighteen thousand, six hundred forty-two".