729240744906 has 32 divisors (see below), whose sum is σ = 1623343610880. Its totient is φ = 242658955008.

The previous prime is 729240744857. The next prime is 729240744923. The reversal of 729240744906 is 609447042927.

729240744906 is a `hidden beast` number, since 72 + 92 + 40 + 7 + 449 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11671146 + ... + 11733461.

It is an arithmetic number, because the mean of its divisors is an integer number (50729487840).

Almost surely, 2^729240744906 is an apocalyptic number.

729240744906 is an abundant number, since it is smaller than the sum of its proper divisors (894102865974).

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

729240744906 is a wasteful number, since it uses less digits than its factorization.

729240744906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23405195 (or 23405189 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 729240744906 in words is "seven hundred twenty-nine billion, two hundred forty million, seven hundred forty-four thousand, nine hundred six".