998253396 has 180 divisors, whose sum is σ = 3170273568. Its totient is φ = 268261632.

The previous prime is 998253353. The next prime is 998253409. The reversal of 998253396 is 693352899.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 654691 + ... + 656213.

Almost surely, 2^998253396 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 998253396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585136784).

998253396 is an abundant number, since it is smaller than the sum of its proper divisors (2172020172).

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

998253396 is a wasteful number, since it uses less digits than its factorization.

With its successor (998253397) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (1580).

998253396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1552 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 998253396 is about 31595.1482984334. The cubic root of 998253396 is about 999.4174593790.

The spelling of 998253396 in words is "nine hundred ninety-eight million, two hundred fifty-three thousand, three hundred ninety-six".