998622944 has 48 divisors (see below), whose sum is σ = 2155806576. Its totient is φ = 451584000.

The previous prime is 998622943. The next prime is 998622953. The reversal of 998622944 is 449226899.

It is a happy number.

998622944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998622941) 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, 62144 + ... + 76544.

It is an arithmetic number, because the mean of its divisors is an integer number (44912637).

Almost surely, 2^998622944 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 998622944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1077903288).

998622944 is an abundant number, since it is smaller than the sum of its proper divisors (1157183632).

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

998622944 is a wasteful number, since it uses less digits than its factorization.

998622944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14619 (or 14611 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The square root of 998622944 is about 31600.9959336727. The cubic root of 998622944 is about 999.5407704739.

The spelling of 998622944 in words is "nine hundred ninety-eight million, six hundred twenty-two thousand, nine hundred forty-four".