998468064 has 144 divisors (see below), whose sum is σ = 3111623424. Its totient is φ = 301190400.

The previous prime is 998468063. The next prime is 998468071. The reversal of 998468064 is 460864899.

998468064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 998468064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998468063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 857947 + ... + 859109.

It is an arithmetic number, because the mean of its divisors is an integer number (21608496).

Almost surely, 2^998468064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998468064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555811712).

998468064 is an abundant number, since it is smaller than the sum of its proper divisors (2113155360).

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

998468064 is a wasteful number, since it uses less digits than its factorization.

998468064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 998468064 is about 31598.5452829715. The cubic root of 998468064 is about 999.4890936859.

The spelling of 998468064 in words is "nine hundred ninety-eight million, four hundred sixty-eight thousand, sixty-four".