988725136 has 45 divisors (see below), whose sum is σ = 2230401051. Its totient is φ = 423362016.

The previous prime is 988725077. The next prime is 988725161. The reversal of 988725136 is 631527889.

The square root of 988725136 is 31444.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

Its product of digits (725760) is a multiple of the sum of its prime factors (2268).

It is a self number, because there is not a number n which added to its sum of digits gives 988725136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 879871 + ... + 880993.

Almost surely, 2^988725136 is an apocalyptic number.

988725136 is the 31444-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988725136

988725136 is an abundant number, since it is smaller than the sum of its proper divisors (1241675915).

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

988725136 is an equidigital number, since it uses as much as digits as its factorization.

988725136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 1132 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The cubic root of 988725136 is about 996.2274981261.

Multiplying 988725136 by its sum of digits (49), we get a square (48447531664 = 220108²).

988725136 divided by its sum of digits (49) gives a square (20178064 = 4492²).

The spelling of 988725136 in words is "nine hundred eighty-eight million, seven hundred twenty-five thousand, one hundred thirty-six".