988481280 has 144 divisors (see below), whose sum is σ = 3211205760. Its totient is φ = 259067904.

The previous prime is 988481267. The next prime is 988481293. The reversal of 988481280 is 82184889.

It is an interprime number because it is at equal distance from previous prime (988481267) and next prime (988481293).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224379 + ... + 228741.

It is an arithmetic number, because the mean of its divisors is an integer number (22300040).

Almost surely, 2^988481280 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 988481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605602880).

988481280 is an abundant number, since it is smaller than the sum of its proper divisors (2222724480).

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

988481280 is a wasteful number, since it uses less digits than its factorization.

988481280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446 (or 4432 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 48.

The square root of 988481280 is about 31440.1221371673. The cubic root of 988481280 is about 996.1455892723.

It can be divided in two parts, 98848 and 1280, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 988481280 in words is "nine hundred eighty-eight million, four hundred eighty-one thousand, two hundred eighty".