728349429 has 16 divisors (see below), whose sum is σ = 995814848. Its totient is φ = 473375232.

The previous prime is 728349421. The next prime is 728349431. The reversal of 728349429 is 924943827.

It is not a de Polignac number, because 728349429 - 2³ = 728349421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728349421) by changing a digit.

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, 819 + ... + 38175.

It is an arithmetic number, because the mean of its divisors is an integer number (62238428).

Almost surely, 2^728349429 is an apocalyptic number.

It is an amenable number.

728349429 is a deficient number, since it is larger than the sum of its proper divisors (267465419).

728349429 is a wasteful number, since it uses less digits than its factorization.

728349429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37524.

The product of its digits is 870912, while the sum is 48.

The square root of 728349429 is about 26987.9496998197. The cubic root of 728349429 is about 899.7321956286.

The spelling of 728349429 in words is "seven hundred twenty-eight million, three hundred forty-nine thousand, four hundred twenty-nine".