1728468 has 72 divisors (see below), whose sum is σ = 5270720. Its totient is φ = 467856.

The previous prime is 1728457. The next prime is 1728481. The reversal of 1728468 is 8648271.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90963 + ... + 90981.

2^1728468 is an apocalyptic number.

1728468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1728468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2635360).

1728468 is an abundant number, since it is smaller than the sum of its proper divisors (3542252).

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

1728468 is a wasteful number, since it uses less digits than its factorization.

1728468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 31 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 1728468 is about 1314.7121357925. The cubic root of 1728468 is about 120.0108323555.

The spelling of 1728468 in words is "one million, seven hundred twenty-eight thousand, four hundred sixty-eight".