1728427008 has 176 divisors, whose sum is σ = 5744438784. Its totient is φ = 448880640.

The previous prime is 1728426983. The next prime is 1728427031. The reversal of 1728427008 is 8007248271.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232891 + ... + 240197.

Almost surely, 2^1728427008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1728427008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872219392).

1728427008 is an abundant number, since it is smaller than the sum of its proper divisors (4016011776).

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

1728427008 is a wasteful number, since it uses less digits than its factorization.

1728427008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348 (or 7330 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 1728427008 is about 41574.3551723896. The cubic root of 1728427008 is about 1200.0988363037.

The spelling of 1728427008 in words is "one billion, seven hundred twenty-eight million, four hundred twenty-seven thousand, eight".