729023424 has 28 divisors (see below), whose sum is σ = 1928874984. Its totient is φ = 243007744.

The previous prime is 729023423. The next prime is 729023441. The reversal of 729023424 is 424320927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729023423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898307 + ... + 1898690.

Almost surely, 2^729023424 is an apocalyptic number.

It is an amenable number.

729023424 is an abundant number, since it is smaller than the sum of its proper divisors (1199851560).

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

729023424 is a wasteful number, since it uses less digits than its factorization.

729023424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797012 (or 3797002 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 729023424 is about 27000.4337742933. The cubic root of 729023424 is about 900.0096394029.

The spelling of 729023424 in words is "seven hundred twenty-nine million, twenty-three thousand, four hundred twenty-four".