1728426080 has 192 divisors, whose sum is σ = 4470681600. Its totient is φ = 629544960.

The previous prime is 1728426047. The next prime is 1728426097. The reversal of 1728426080 is 806248271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12434651 + ... + 12434789.

It is an arithmetic number, because the mean of its divisors is an integer number (23284800).

Almost surely, 2^1728426080 is an apocalyptic number.

1728426080 is a gapful number since it is divisible by the number (10) 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 1728426080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2235340800).

1728426080 is an abundant number, since it is smaller than the sum of its proper divisors (2742255520).

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

1728426080 is a wasteful number, since it uses less digits than its factorization.

1728426080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 1728426080 is about 41574.3440116618. The cubic root of 1728426080 is about 1200.0986215242.

The spelling of 1728426080 in words is "one billion, seven hundred twenty-eight million, four hundred twenty-six thousand, eighty".