729407049 has 32 divisors (see below), whose sum is σ = 1179230976. Its totient is φ = 391495680.

The previous prime is 729407047. The next prime is 729407051. The reversal of 729407049 is 940704927.

It is an interprime number because it is at equal distance from previous prime (729407047) and next prime (729407051).

It is not a de Polignac number, because 729407049 - 2¹ = 729407047 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 729407049.

It is not an unprimeable number, because it can be changed into a prime (729407047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204219 + ... + 207759.

It is an arithmetic number, because the mean of its divisors is an integer number (36850968).

Almost surely, 2^729407049 is an apocalyptic number.

It is an amenable number.

729407049 is a deficient number, since it is larger than the sum of its proper divisors (449823927).

729407049 is a wasteful number, since it uses less digits than its factorization.

729407049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 729407049 is about 27007.5368925047. The cubic root of 729407049 is about 900.1674787089.

The spelling of 729407049 in words is "seven hundred twenty-nine million, four hundred seven thousand, forty-nine".