989504018 has 8 divisors (see below), whose sum is σ = 1491715200. Its totient is φ = 492265620.

The previous prime is 989504017. The next prime is 989504053. The reversal of 989504018 is 810405989.

989504018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 989504018.

It is not an unprimeable number, because it can be changed into a prime (989504017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242698 + ... + 1243493.

It is an arithmetic number, because the mean of its divisors is an integer number (186464400).

Almost surely, 2^989504018 is an apocalyptic number.

989504018 is a deficient number, since it is larger than the sum of its proper divisors (502211182).

989504018 is a wasteful number, since it uses less digits than its factorization.

989504018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486392.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 989504018 is about 31456.3827863281. The cubic root of 989504018 is about 996.4890268272.

The spelling of 989504018 in words is "nine hundred eighty-nine million, five hundred four thousand, eighteen".