988400384 has 18 divisors (see below), whose sum is σ = 1972940340. Its totient is φ = 494200064.

The previous prime is 988400377. The next prime is 988400389. The reversal of 988400384 is 483004889.

It is not an unprimeable number, because it can be changed into a prime (988400389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930214 + ... + 1930725.

Almost surely, 2^988400384 is an apocalyptic number.

It is an amenable number.

988400384 is a deficient number, since it is larger than the sum of its proper divisors (984539956).

988400384 is an equidigital number, since it uses as much as digits as its factorization.

988400384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860955 (or 3860941 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 988400384 is about 31438.8356018476. The cubic root of 988400384 is about 996.1184141186.

The spelling of 988400384 in words is "nine hundred eighty-eight million, four hundred thousand, three hundred eighty-four".