729994608 has 270 divisors, whose sum is σ = 2508500904. Its totient is φ = 194109696.

The previous prime is 729994607. The next prime is 729994619. The reversal of 729994608 is 806499927.

729994608 is a `hidden beast` number, since 7 + 29 + 9 + 9 + 4 + 608 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729994607) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 19729566 + ... + 19729602.

Almost surely, 2^729994608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 729994608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254250452).

729994608 is an abundant number, since it is smaller than the sum of its proper divisors (1778506296).

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

729994608 is a wasteful number, since it uses less digits than its factorization.

729994608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 729994608 is about 27018.4123885916. The cubic root of 729994608 is about 900.4091177008.

The spelling of 729994608 in words is "seven hundred twenty-nine million, nine hundred ninety-four thousand, six hundred eight".