729569334 has 64 divisors (see below), whose sum is σ = 1694568960. Its totient is φ = 207463680.

The previous prime is 729569329. The next prime is 729569339. The reversal of 729569334 is 433965927.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (729569329) and next prime (729569339).

It is a super-2 number, since 2×729569334² = 1064542826226407112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729569339) 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, 54759 + ... + 66765.

It is an arithmetic number, because the mean of its divisors is an integer number (26477640).

Almost surely, 2^729569334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 729569334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847284480).

729569334 is an abundant number, since it is smaller than the sum of its proper divisors (964999626).

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

729569334 is a wasteful number, since it uses less digits than its factorization.

729569334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12085.

The product of its digits is 1224720, while the sum is 48.

The square root of 729569334 is about 27010.5411645158. The cubic root of 729569334 is about 900.2342328607.

The spelling of 729569334 in words is "seven hundred twenty-nine million, five hundred sixty-nine thousand, three hundred thirty-four".