1728371232 has 576 divisors, whose sum is σ = 6453457920. Its totient is φ = 427327488.

The previous prime is 1728371231. The next prime is 1728371237. The reversal of 1728371232 is 2321738271.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1728371231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36773833 + ... + 36773879.

It is an arithmetic number, because the mean of its divisors is an integer number (11203920).

Almost surely, 2^1728371232 is an apocalyptic number.

1728371232 is a gapful number since it is divisible by the number (12) 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 1728371232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3226728960).

1728371232 is an abundant number, since it is smaller than the sum of its proper divisors (4725086688).

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

1728371232 is a wasteful number, since it uses less digits than its factorization.

1728371232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 142 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 1728371232 is about 41573.6843688408. The cubic root of 1728371232 is about 1200.0859271803.

The spelling of 1728371232 in words is "one billion, seven hundred twenty-eight million, three hundred seventy-one thousand, two hundred thirty-two".