998044388 has 24 divisors (see below), whose sum is σ = 2005641120. Its totient is φ = 429779520.

The previous prime is 998044387. The next prime is 998044391. The reversal of 998044388 is 883440899.

It is not an unprimeable number, because it can be changed into a prime (998044387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596081 + ... + 597752.

It is an arithmetic number, because the mean of its divisors is an integer number (83568380).

Almost surely, 2^998044388 is an apocalyptic number.

It is an amenable number.

998044388 is an abundant number, since it is smaller than the sum of its proper divisors (1007596732).

998044388 is a wasteful number, since it uses less digits than its factorization.

998044388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193867 (or 1193865 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 998044388 is about 31591.8405288454. The cubic root of 998044388 is about 999.3477039357.

The spelling of 998044388 in words is "nine hundred ninety-eight million, forty-four thousand, three hundred eighty-eight".