998328550 has 24 divisors (see below), whose sum is σ = 1860490296. Its totient is φ = 398557440.

The previous prime is 998328523. The next prime is 998328581. The reversal of 998328550 is 55823899.

It is a junction number, because it is equal to n+sod(n) for n = 998328494 and 998328503.

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, 7062 + ... + 45238.

It is an arithmetic number, because the mean of its divisors is an integer number (77520429).

Almost surely, 2^998328550 is an apocalyptic number.

998328550 is a deficient number, since it is larger than the sum of its proper divisors (862161746).

998328550 is a wasteful number, since it uses less digits than its factorization.

998328550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38712 (or 38707 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 998328550 is about 31596.3376042224. The cubic root of 998328550 is about 999.4425392953.

The spelling of 998328550 in words is "nine hundred ninety-eight million, three hundred twenty-eight thousand, five hundred fifty".