729920046 has 8 divisors (see below), whose sum is σ = 1459840104. Its totient is φ = 243306680.

The previous prime is 729920033. The next prime is 729920057. The reversal of 729920046 is 640029927.

It is a sphenic number, since it is the product of 3 distinct primes.

729920046 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 729919986 and 729920013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60826665 + ... + 60826676.

It is an arithmetic number, because the mean of its divisors is an integer number (182480013).

Almost surely, 2^729920046 is an apocalyptic number.

729920046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

729920046 is a wasteful number, since it uses less digits than its factorization.

729920046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121653346.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 729920046 is about 27017.0325165441. The cubic root of 729920046 is about 900.3784605837.

The spelling of 729920046 in words is "seven hundred twenty-nine million, nine hundred twenty thousand, forty-six".