728042313 has 16 divisors (see below), whose sum is σ = 978220800. Its totient is φ = 481628160.

The previous prime is 728042311. The next prime is 728042333. The reversal of 728042313 is 313240827.

It is not a de Polignac number, because 728042313 - 2¹ = 728042311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728042311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217033 + ... + 220361.

It is an arithmetic number, because the mean of its divisors is an integer number (61138800).

Almost surely, 2^728042313 is an apocalyptic number.

It is an amenable number.

728042313 is a deficient number, since it is larger than the sum of its proper divisors (250178487).

728042313 is a wasteful number, since it uses less digits than its factorization.

728042313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 728042313 is about 26982.2592271292. The cubic root of 728042313 is about 899.6057174167.

The spelling of 728042313 in words is "seven hundred twenty-eight million, forty-two thousand, three hundred thirteen".