728972260 has 12 divisors (see below), whose sum is σ = 1530841788. Its totient is φ = 291588896.

The previous prime is 728972213. The next prime is 728972273. The reversal of 728972260 is 62279827.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119771136 + 609201124 = 10944^2 + 24682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18224287 + ... + 18224326.

It is an arithmetic number, because the mean of its divisors is an integer number (127570149).

Almost surely, 2^728972260 is an apocalyptic number.

It is an amenable number.

728972260 is an abundant number, since it is smaller than the sum of its proper divisors (801869528).

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

728972260 is a wasteful number, since it uses less digits than its factorization.

728972260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36448622 (or 36448620 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 728972260 is about 26999.4862914093. The cubic root of 728972260 is about 899.9885842173.

It can be divided in two parts, 72897 and 2260, that added together give a palindrome (75157).

The spelling of 728972260 in words is "seven hundred twenty-eight million, nine hundred seventy-two thousand, two hundred sixty".