998141264 has 60 divisors (see below), whose sum is σ = 2083195164. Its totient is φ = 463122432.

The previous prime is 998141251. The next prime is 998141273. The reversal of 998141264 is 462141899.

It can be written as a sum of positive squares in 6 ways, for example, as 25200400 + 972940864 = 5020^2 + 31192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336074 + ... + 339030.

Almost surely, 2^998141264 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 998141264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041597582).

998141264 is an abundant number, since it is smaller than the sum of its proper divisors (1085053900).

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

998141264 is a wasteful number, since it uses less digits than its factorization.

With its successor (998141265) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (3049).

998141264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072 (or 3049 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 998141264 is about 31593.3737356427. The cubic root of 998141264 is about 999.3800370587.

The spelling of 998141264 in words is "nine hundred ninety-eight million, one hundred forty-one thousand, two hundred sixty-four".