728042334 has 16 divisors (see below), whose sum is σ = 1457782272. Its totient is φ = 242397848.

The previous prime is 728042333. The next prime is 728042351. The reversal of 728042334 is 433240827.

It is a junction number, because it is equal to n+sod(n) for n = 728042295 and 728042304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728042333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65124 + ... + 75479.

It is an arithmetic number, because the mean of its divisors is an integer number (91111392).

Almost surely, 2^728042334 is an apocalyptic number.

728042334 is an abundant number, since it is smaller than the sum of its proper divisors (729739938).

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

728042334 is a wasteful number, since it uses less digits than its factorization.

728042334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141471.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 728042334 is about 26982.2596162738. The cubic root of 728042334 is about 899.6057260663.

The spelling of 728042334 in words is "seven hundred twenty-eight million, forty-two thousand, three hundred thirty-four".