1723728272 has 60 divisors (see below), whose sum is σ = 3975410736. Its totient is φ = 721546560.

The previous prime is 1723728263. The next prime is 1723728319. The reversal of 1723728272 is 2728273271.

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 11 ways as a sum of consecutive naturals, for example, 8147 + ... + 59277.

Almost surely, 2^1723728272 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 1723728272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987705368).

1723728272 is an abundant number, since it is smaller than the sum of its proper divisors (2251682464).

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

1723728272 is a wasteful number, since it uses less digits than its factorization.

1723728272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51196 (or 51183 counting only the distinct ones).

The product of its digits is 131712, while the sum is 41.

The square root of 1723728272 is about 41517.8066858065. The cubic root of 1723728272 is about 1199.0103581393.

The spelling of 1723728272 in words is "one billion, seven hundred twenty-three million, seven hundred twenty-eight thousand, two hundred seventy-two".