1988760 has 32 divisors (see below), whose sum is σ = 5966640. Its totient is φ = 530304.

The previous prime is 1988759. The next prime is 1988797. The reversal of 1988760 is 678891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8167 + ... + 8406.

2^1988760 is an apocalyptic number.

1988760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1988760 is an abundant number, since it is smaller than the sum of its proper divisors (3977880).

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

1988760 is a wasteful number, since it uses less digits than its factorization.

1988760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16587 (or 16583 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1988760 is about 1410.2340231323. The cubic root of 1988760 is about 125.7556362399.

The spelling of 1988760 in words is "one million, nine hundred eighty-eight thousand, seven hundred sixty".