1988887260 has 24 divisors (see below), whose sum is σ = 5568884496. Its totient is φ = 530369920.

The previous prime is 1988887259. The next prime is 1988887261. The reversal of 1988887260 is 627888891.

It is an interprime number because it is at equal distance from previous prime (1988887259) and next prime (1988887261).

It is a self number, because there is not a number n which added to its sum of digits gives 1988887260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1988887261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16574001 + ... + 16574120.

It is an arithmetic number, because the mean of its divisors is an integer number (232036854).

Almost surely, 2^1988887260 is an apocalyptic number.

1988887260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1988887260 is an abundant number, since it is smaller than the sum of its proper divisors (3579997236).

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

1988887260 is a wasteful number, since it uses less digits than its factorization.

1988887260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33148133 (or 33148131 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 57.

The square root of 1988887260 is about 44596.9422718643. The cubic root of 1988887260 is about 1257.5831853453.

The spelling of 1988887260 in words is "one billion, nine hundred eighty-eight million, eight hundred eighty-seven thousand, two hundred sixty".