729389492 has 24 divisors (see below), whose sum is σ = 1377185376. Its totient is φ = 336012768.

The previous prime is 729389449. The next prime is 729389497. The reversal of 729389492 is 294983927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729389497) 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 7 ways as a sum of consecutive naturals, for example, 15623 + ... + 41265.

It is an arithmetic number, because the mean of its divisors is an integer number (57382724).

Almost surely, 2^729389492 is an apocalyptic number.

It is an amenable number.

729389492 is a deficient number, since it is larger than the sum of its proper divisors (647795884).

729389492 is a wasteful number, since it uses less digits than its factorization.

729389492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26207 (or 26205 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 729389492 is about 27007.2118516518. The cubic root of 729389492 is about 900.1602562363.

The spelling of 729389492 in words is "seven hundred twenty-nine million, three hundred eighty-nine thousand, four hundred ninety-two".