1988318100 has 36 divisors (see below), whose sum is σ = 5752867904. Its totient is φ = 530218080.

The previous prime is 1988318093. The next prime is 1988318107. The reversal of 1988318100 is 18138891.

It is an interprime number because it is at equal distance from previous prime (1988318093) and next prime (1988318107).

It is a super-2 number, since 2×1988318100² = 7906817733575220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988318107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3313564 + ... + 3314163.

Almost surely, 2^1988318100 is an apocalyptic number.

1988318100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1988318100 is an abundant number, since it is smaller than the sum of its proper divisors (3764549804).

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

1988318100 is a wasteful number, since it uses less digits than its factorization.

1988318100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627744 (or 6627737 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 39.

The square root of 1988318100 is about 44590.5606603012. The cubic root of 1988318100 is about 1257.4632130124.

The spelling of 1988318100 in words is "one billion, nine hundred eighty-eight million, three hundred eighteen thousand, one hundred".