729430812 has 48 divisors (see below), whose sum is σ = 2063040000. Its totient is φ = 221039280.

The previous prime is 729430811. The next prime is 729430813. The reversal of 729430812 is 218034927.

It is an interprime number because it is at equal distance from previous prime (729430811) and next prime (729430813).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729430811) 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 15 ways as a sum of consecutive naturals, for example, 305812 + ... + 308187.

It is an arithmetic number, because the mean of its divisors is an integer number (42980000).

Almost surely, 2^729430812 is an apocalyptic number.

It is an amenable number.

729430812 is an abundant number, since it is smaller than the sum of its proper divisors (1333609188).

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

729430812 is a wasteful number, since it uses less digits than its factorization.

729430812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614023 (or 614015 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 729430812 is about 27007.9768216725. The cubic root of 729430812 is about 900.1772539766.

The spelling of 729430812 in words is "seven hundred twenty-nine million, four hundred thirty thousand, eight hundred twelve".