1084371918 has 32 divisors (see below), whose sum is σ = 2482480896. Its totient is φ = 309331008.

The previous prime is 1084371917. The next prime is 1084371941. The reversal of 1084371918 is 8191734801.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1084371918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084371917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6930 + ... + 47082.

It is an arithmetic number, because the mean of its divisors is an integer number (77577528).

Almost surely, 2^1084371918 is an apocalyptic number.

1084371918 is an abundant number, since it is smaller than the sum of its proper divisors (1398108978).

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

1084371918 is a wasteful number, since it uses less digits than its factorization.

1084371918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40808.

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 1084371918 is about 32929.8028843174. The cubic root of 1084371918 is about 1027.3681253429.

The spelling of 1084371918 in words is "one billion, eighty-four million, three hundred seventy-one thousand, nine hundred eighteen".