1728224001 has 48 divisors (see below), whose sum is σ = 2923368448. Its totient is φ = 963446400.

The previous prime is 1728223967. The next prime is 1728224011. The reversal of 1728224001 is 1004228271.

It is not a de Polignac number, because 1728224001 - 2⁷ = 1728223873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1728224011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486291 + ... + 489831.

Almost surely, 2^1728224001 is an apocalyptic number.

It is an amenable number.

1728224001 is a deficient number, since it is larger than the sum of its proper divisors (1195144447).

1728224001 is a wasteful number, since it uses less digits than its factorization.

1728224001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742 (or 3739 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1728224001 is about 41571.9136076270. The cubic root of 1728224001 is about 1200.0518498430.

The spelling of 1728224001 in words is "one billion, seven hundred twenty-eight million, two hundred twenty-four thousand, one".