988001220 has 48 divisors (see below), whose sum is σ = 2769096960. Its totient is φ = 263210496.

The previous prime is 988001219. The next prime is 988001221. The reversal of 988001220 is 22100889.

It is an interprime number because it is at equal distance from previous prime (988001219) and next prime (988001221).

It is a super-2 number, since 2×988001220² = 1952292821442976800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (988001221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58716 + ... + 73644.

It is an arithmetic number, because the mean of its divisors is an integer number (57689520).

Almost surely, 2^988001220 is an apocalyptic number.

It is an amenable number.

988001220 is an abundant number, since it is smaller than the sum of its proper divisors (1781095740).

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

988001220 is a wasteful number, since it uses less digits than its factorization.

988001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16044 (or 16042 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 988001220 is about 31432.4866976827. The cubic root of 988001220 is about 995.9843024251.

The spelling of 988001220 in words is "nine hundred eighty-eight million, one thousand, two hundred twenty".