998892188 has 48 divisors (see below), whose sum is σ = 2118239424. Its totient is φ = 402355200.

The previous prime is 998892173. The next prime is 998892197. The reversal of 998892188 is 881298899.

It is a self number, because there is not a number n which added to its sum of digits gives 998892188.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618470 + ... + 620082.

It is an arithmetic number, because the mean of its divisors is an integer number (44129988).

Almost surely, 2^998892188 is an apocalyptic number.

It is an amenable number.

998892188 is an abundant number, since it is smaller than the sum of its proper divisors (1119347236).

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

998892188 is a wasteful number, since it uses less digits than its factorization.

998892188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942 (or 2940 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 62.

The square root of 998892188 is about 31605.2557021771. The cubic root of 998892188 is about 999.6305928885.

The spelling of 998892188 in words is "nine hundred ninety-eight million, eight hundred ninety-two thousand, one hundred eighty-eight".