988441385 has 16 divisors (see below), whose sum is σ = 1198199952. Its totient is φ = 782745600.

The previous prime is 988441373. The next prime is 988441403. The reversal of 988441385 is 583144889.

It can be written as a sum of positive squares in 8 ways, for example, as 3988009 + 984453376 = 1997^2 + 31376^2 .

It is not a de Polignac number, because 988441385 - 2⁴ = 988441369 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 218345 + ... + 222825.

It is an arithmetic number, because the mean of its divisors is an integer number (74887497).

Almost surely, 2^988441385 is an apocalyptic number.

It is an amenable number.

988441385 is a deficient number, since it is larger than the sum of its proper divisors (209758567).

988441385 is a wasteful number, since it uses less digits than its factorization.

988441385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924.

The product of its digits is 1105920, while the sum is 50.

The square root of 988441385 is about 31439.4876707621. The cubic root of 988441385 is about 996.1321876484.

The spelling of 988441385 in words is "nine hundred eighty-eight million, four hundred forty-one thousand, three hundred eighty-five".