918378 has 20 divisors (see below), whose sum is σ = 2058210. Its totient is φ = 306072.

The previous prime is 918371. The next prime is 918389. The reversal of 918378 is 873819.

It can be written as a sum of positive squares in only one way, i.e., 859329 + 59049 = 927^2 + 243^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 918378.

It is not an unprimeable number, because it can be changed into a prime (918371) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2673 + ... + 2996.

2⁹¹⁸³⁷⁸ is an apocalyptic number.

918378 is an abundant number, since it is smaller than the sum of its proper divisors (1139832).

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

918378 is a wasteful number, since it uses less digits than its factorization.

918378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683 (or 5674 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 918378 is about 958.3204057099. The cubic root of 918378 is about 97.2016917858.

It can be divided in two parts, 9183 and 78, that added together give a cube (9261 = 21³).

The spelling of 918378 in words is "nine hundred eighteen thousand, three hundred seventy-eight".