1988413056 has 128 divisors (see below), whose sum is σ = 6707030400. Its totient is φ = 568111104.

The previous prime is 1988412983. The next prime is 1988413073. The reversal of 1988413056 is 6503148891.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16905 + ... + 65288.

It is an arithmetic number, because the mean of its divisors is an integer number (52398675).

Almost surely, 2^1988413056 is an apocalyptic number.

1988413056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1988413056 is an abundant number, since it is smaller than the sum of its proper divisors (4718617344).

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

1988413056 is an equidigital number, since it uses as much as digits as its factorization.

1988413056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82223 (or 82205 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1988413056 is about 44591.6254020864. The cubic root of 1988413056 is about 1257.4832302280.

The spelling of 1988413056 in words is "one billion, nine hundred eighty-eight million, four hundred thirteen thousand, fifty-six".