1728668088 has 64 divisors (see below), whose sum is σ = 5487840000. Its totient is φ = 493904736.

The previous prime is 1728668077. The next prime is 1728668099. The reversal of 1728668088 is 8808668271.

It is an interprime number because it is at equal distance from previous prime (1728668077) and next prime (1728668099).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 570138 + ... + 573161.

It is an arithmetic number, because the mean of its divisors is an integer number (85747500).

Almost surely, 2^1728668088 is an apocalyptic number.

1728668088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1728668088 is an abundant number, since it is smaller than the sum of its proper divisors (3759171912).

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

1728668088 is a wasteful number, since it uses less digits than its factorization.

1728668088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143321 (or 1143311 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The square root of 1728668088 is about 41577.2544548098. The cubic root of 1728668088 is about 1200.1546300738.

The spelling of 1728668088 in words is "one billion, seven hundred twenty-eight million, six hundred sixty-eight thousand, eighty-eight".