729055944 has 64 divisors (see below), whose sum is σ = 2055422400. Its totient is φ = 239386752.

The previous prime is 729055933. The next prime is 729055993. The reversal of 729055944 is 449550927.

729055944 is a `hidden beast` number, since 7 + 2 + 90 + 559 + 4 + 4 = 666.

It is a super-2 number, since 2×729055944² = 1063045138963462272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 729055944.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10717 + ... + 39660.

It is an arithmetic number, because the mean of its divisors is an integer number (32115975).

Almost surely, 2^729055944 is an apocalyptic number.

It is an amenable number.

729055944 is an abundant number, since it is smaller than the sum of its proper divisors (1326366456).

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

729055944 is a wasteful number, since it uses less digits than its factorization.

729055944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50459 (or 50449 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 729055944 is about 27001.0359801249. The cubic root of 729055944 is about 900.0230216333.

The spelling of 729055944 in words is "seven hundred twenty-nine million, fifty-five thousand, nine hundred forty-four".