728373384 has 80 divisors (see below), whose sum is σ = 2128864320. Its totient is φ = 232230240.

The previous prime is 728373353. The next prime is 728373403. The reversal of 728373384 is 483373827.

It is a super-2 number, since 2×728373384² = 1061055573039222912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9532 + ... + 39339.

It is an arithmetic number, because the mean of its divisors is an integer number (26610804).

Almost surely, 2^728373384 is an apocalyptic number.

It is an amenable number.

728373384 is an abundant number, since it is smaller than the sum of its proper divisors (1400490936).

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

728373384 is a wasteful number, since it uses less digits than its factorization.

728373384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48912 (or 48899 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 728373384 is about 26988.3935053571. The cubic root of 728373384 is about 899.7420594145.

The spelling of 728373384 in words is "seven hundred twenty-eight million, three hundred seventy-three thousand, three hundred eighty-four".