729665542 has 16 divisors (see below), whose sum is σ = 1102468752. Its totient is φ = 362184480.

The previous prime is 729665537. The next prime is 729665557. The reversal of 729665542 is 245566927.

729665542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 729665492 and 729665501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204292 + ... + 207832.

It is an arithmetic number, because the mean of its divisors is an integer number (68904297).

Almost surely, 2^729665542 is an apocalyptic number.

729665542 is a deficient number, since it is larger than the sum of its proper divisors (372803210).

729665542 is a wasteful number, since it uses less digits than its factorization.

729665542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263.

The product of its digits is 907200, while the sum is 46.

The square root of 729665542 is about 27012.3220401357. The cubic root of 729665542 is about 900.2738022908.

The spelling of 729665542 in words is "seven hundred twenty-nine million, six hundred sixty-five thousand, five hundred forty-two".