918942486 has 192 divisors, whose sum is σ = 2516828160. Its totient is φ = 218116800.

The previous prime is 918942481. The next prime is 918942487. The reversal of 918942486 is 684249819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918942481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2993145 + ... + 2993451.

It is an arithmetic number, because the mean of its divisors is an integer number (13108480).

Almost surely, 2^918942486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 918942486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258414080).

918942486 is an abundant number, since it is smaller than the sum of its proper divisors (1597885674).

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

918942486 is a wasteful number, since it uses less digits than its factorization.

918942486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 380 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 918942486 is about 30314.0641617055. The cubic root of 918942486 is about 972.2160288858.

The spelling of 918942486 in words is "nine hundred eighteen million, nine hundred forty-two thousand, four hundred eighty-six".