1728534234 has 64 divisors (see below), whose sum is σ = 4165171200. Its totient is φ = 467166528.

The previous prime is 1728534233. The next prime is 1728534251. The reversal of 1728534234 is 4324358271.

It is a junction number, because it is equal to n+sod(n) for n = 1728534192 and 1728534201.

It is not an unprimeable number, because it can be changed into a prime (1728534233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 732184 + ... + 734540.

It is an arithmetic number, because the mean of its divisors is an integer number (65080800).

Almost surely, 2^1728534234 is an apocalyptic number.

1728534234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1728534234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2082585600).

1728534234 is an abundant number, since it is smaller than the sum of its proper divisors (2436636966).

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

1728534234 is a wasteful number, since it uses less digits than its factorization.

1728534234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307.

The product of its digits is 161280, while the sum is 39.

The square root of 1728534234 is about 41575.6447213991. The cubic root of 1728534234 is about 1200.1236525357.

The spelling of 1728534234 in words is "one billion, seven hundred twenty-eight million, five hundred thirty-four thousand, two hundred thirty-four".