729455532 has 96 divisors (see below), whose sum is σ = 1881487104. Its totient is φ = 218592000.

The previous prime is 729455509. The next prime is 729455539. The reversal of 729455532 is 235554927.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (729455539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1055307 + ... + 1055997.

It is an arithmetic number, because the mean of its divisors is an integer number (19598824).

Almost surely, 2^729455532 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 729455532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940743552).

729455532 is an abundant number, since it is smaller than the sum of its proper divisors (1152031572).

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

729455532 is a wasteful number, since it uses less digits than its factorization.

729455532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 877 counting only the distinct ones).

The product of its digits is 378000, while the sum is 42.

The square root of 729455532 is about 27008.4344603681. The cubic root of 729455532 is about 900.1874226954.

It can be divided in two parts, 7294 and 55532, that added together give a palindrome (62826).

The spelling of 729455532 in words is "seven hundred twenty-nine million, four hundred fifty-five thousand, five hundred thirty-two".