729756342 has 24 divisors (see below), whose sum is σ = 1807016016. Its totient is φ = 208501776.

The previous prime is 729756341. The next prime is 729756347. The reversal of 729756342 is 243657927.

729756342 is a `hidden beast` number, since 7 + 2 + 9 + 7 + 5 + 634 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729756341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2895733 + ... + 2895984.

It is an arithmetic number, because the mean of its divisors is an integer number (75292334).

Almost surely, 2^729756342 is an apocalyptic number.

729756342 is an abundant number, since it is smaller than the sum of its proper divisors (1077259674).

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

729756342 is a wasteful number, since it uses less digits than its factorization.

729756342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5791732 (or 5791729 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 729756342 is about 27014.0027023024. The cubic root of 729756342 is about 900.3111442719.

The spelling of 729756342 in words is "seven hundred twenty-nine million, seven hundred fifty-six thousand, three hundred forty-two".