1728072033 has 8 divisors (see below), whose sum is σ = 2304289248. Its totient is φ = 1151951424.

The previous prime is 1728072011. The next prime is 1728072037. The reversal of 1728072033 is 3302708271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1728072033 - 2²⁶ = 1660963169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1728071985 and 1728072003.

It is not an unprimeable number, because it can be changed into a prime (1728072037) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 50985 + ... + 77817.

It is an arithmetic number, because the mean of its divisors is an integer number (288036156).

Almost surely, 2^1728072033 is an apocalyptic number.

It is an amenable number.

1728072033 is a deficient number, since it is larger than the sum of its proper divisors (576217215).

1728072033 is a wasteful number, since it uses less digits than its factorization.

1728072033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48303.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1728072033 is about 41570.0857949560. The cubic root of 1728072033 is about 1200.0166740739.

The spelling of 1728072033 in words is "one billion, seven hundred twenty-eight million, seventy-two thousand, thirty-three".