998028486 has 192 divisors, whose sum is σ = 2909260800. Its totient is φ = 247463424.

The previous prime is 998028463. The next prime is 998028497. The reversal of 998028486 is 684820899.

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 95 ways as a sum of consecutive naturals, for example, 1085535 + ... + 1086453.

It is an arithmetic number, because the mean of its divisors is an integer number (15152400).

Almost surely, 2^998028486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998028486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454630400).

998028486 is an abundant number, since it is smaller than the sum of its proper divisors (1911232314).

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

998028486 is a wasteful number, since it uses less digits than its factorization.

998028486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 998028486 is about 31591.5888489326. The cubic root of 998028486 is about 999.3423963189.

The spelling of 998028486 in words is "nine hundred ninety-eight million, twenty-eight thousand, four hundred eighty-six".