988140844 has 12 divisors (see below), whose sum is σ = 1830966984. Its totient is φ = 465007424.

The previous prime is 988140823. The next prime is 988140863. The reversal of 988140844 is 448041889.

It is a junction number, because it is equal to n+sod(n) for n = 988140794 and 988140803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7265674 + ... + 7265809.

It is an arithmetic number, because the mean of its divisors is an integer number (152580582).

Almost surely, 2^988140844 is an apocalyptic number.

It is an amenable number.

988140844 is a deficient number, since it is larger than the sum of its proper divisors (842826140).

988140844 is a wasteful number, since it uses less digits than its factorization.

988140844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14531504 (or 14531502 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 988140844 is about 31434.7076334424. The cubic root of 988140844 is about 996.0312176040.

The spelling of 988140844 in words is "nine hundred eighty-eight million, one hundred forty thousand, eight hundred forty-four".