988790238 has 12 divisors (see below), whose sum is σ = 2142378888. Its totient is φ = 329596740.

The previous prime is 988790219. The next prime is 988790249. The reversal of 988790238 is 832097889.

It is a super-2 number, since 2×988790238² = 1955412269528193288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27466378 + ... + 27466413.

It is an arithmetic number, because the mean of its divisors is an integer number (178531574).

Almost surely, 2^988790238 is an apocalyptic number.

988790238 is an abundant number, since it is smaller than the sum of its proper divisors (1153588650).

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

988790238 is a wasteful number, since it uses less digits than its factorization.

988790238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54932799 (or 54932796 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 988790238 is about 31445.0351884045. The cubic root of 988790238 is about 996.2493629757.

The spelling of 988790238 in words is "nine hundred eighty-eight million, seven hundred ninety thousand, two hundred thirty-eight".