988864040 has 128 divisors (see below), whose sum is σ = 2407449600. Its totient is φ = 364707840.

The previous prime is 988864039. The next prime is 988864043. The reversal of 988864040 is 40468889.

It is not an unprimeable number, because it can be changed into a prime (988864043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3847592 + ... + 3847848.

It is an arithmetic number, because the mean of its divisors is an integer number (18808200).

Almost surely, 2^988864040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988864040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203724800).

988864040 is an abundant number, since it is smaller than the sum of its proper divisors (1418585560).

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

988864040 is a wasteful number, since it uses less digits than its factorization.

988864040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 988864040 is about 31446.2086744968. The cubic root of 988864040 is about 996.2741486054.

The spelling of 988864040 in words is "nine hundred eighty-eight million, eight hundred sixty-four thousand, forty".