728261024 has 24 divisors (see below), whose sum is σ = 1468736388. Its totient is φ = 355248640.

The previous prime is 728260961. The next prime is 728261041. The reversal of 728261024 is 420162827.

It can be written as a sum of positive squares in 2 ways, for example, as 679540624 + 48720400 = 26068^2 + 6980^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 276227 + ... + 278850.

Almost surely, 2^728261024 is an apocalyptic number.

It is an amenable number.

728261024 is an abundant number, since it is smaller than the sum of its proper divisors (740475364).

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

728261024 is a wasteful number, since it uses less digits than its factorization.

728261024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555128 (or 555120 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 728261024 is about 26986.3117894980. The cubic root of 728261024 is about 899.6957918367.

The spelling of 728261024 in words is "seven hundred twenty-eight million, two hundred sixty-one thousand, twenty-four".