989041418 has 16 divisors (see below), whose sum is σ = 1491272640. Its totient is φ = 491956896.

The previous prime is 989041411. The next prime is 989041421. The reversal of 989041418 is 814140989.

It is not an unprimeable number, because it can be changed into a prime (989041411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484043 + ... + 486081.

It is an arithmetic number, because the mean of its divisors is an integer number (93204540).

Almost surely, 2^989041418 is an apocalyptic number.

989041418 is a deficient number, since it is larger than the sum of its proper divisors (502231222).

989041418 is a wasteful number, since it uses less digits than its factorization.

989041418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 989041418 is about 31449.0288880277. The cubic root of 989041418 is about 996.3337141081. Note that the first 3 decimals are identical.

The spelling of 989041418 in words is "nine hundred eighty-nine million, forty-one thousand, four hundred eighteen".