918442 has 24 divisors (see below), whose sum is σ = 1679904. Its totient is φ = 368832.

The previous prime is 918439. The next prime is 918443. The reversal of 918442 is 244819.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 918442.

It is not an unprimeable number, because it can be changed into a prime (918443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3933 + ... + 4159.

It is an arithmetic number, because the mean of its divisors is an integer number (69996).

2⁹¹⁸⁴⁴² is an apocalyptic number.

918442 is a deficient number, since it is larger than the sum of its proper divisors (761462).

918442 is a wasteful number, since it uses less digits than its factorization.

918442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 253 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 918442 is about 958.3537968830. The cubic root of 918442 is about 97.2039496665.

The spelling of 918442 in words is "nine hundred eighteen thousand, four hundred forty-two".