998769120 has 96 divisors (see below), whose sum is σ = 3231210528. Its totient is φ = 259135488.

The previous prime is 998769097. The next prime is 998769131. The reversal of 998769120 is 21967899.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10359 + ... + 45878.

It is an arithmetic number, because the mean of its divisors is an integer number (33658443).

Almost surely, 2^998769120 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 998769120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615605264).

998769120 is an abundant number, since it is smaller than the sum of its proper divisors (2232441408).

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

998769120 is a wasteful number, since it uses less digits than its factorization.

998769120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56292 (or 56284 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 51.

The square root of 998769120 is about 31603.3086875409. The cubic root of 998769120 is about 999.5895382108.

The spelling of 998769120 in words is "nine hundred ninety-eight million, seven hundred sixty-nine thousand, one hundred twenty".