988844428 has 72 divisors (see below), whose sum is σ = 2137784544. Its totient is φ = 396802560.

The previous prime is 988844413. The next prime is 988844429. The reversal of 988844428 is 824448889.

It is not an unprimeable number, because it can be changed into a prime (988844429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141300 + ... + 148132.

It is an arithmetic number, because the mean of its divisors is an integer number (29691452).

Almost surely, 2^988844428 is an apocalyptic number.

It is an amenable number.

988844428 is an abundant number, since it is smaller than the sum of its proper divisors (1148940116).

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

988844428 is a wasteful number, since it uses less digits than its factorization.

988844428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895 (or 6882 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 55.

The square root of 988844428 is about 31445.8968388564. The cubic root of 988844428 is about 996.2675622407.

The spelling of 988844428 in words is "nine hundred eighty-eight million, eight hundred forty-four thousand, four hundred twenty-eight".