728260356 has 12 divisors (see below), whose sum is σ = 1699274192. Its totient is φ = 242753448.

The previous prime is 728260349. The next prime is 728260363. The reversal of 728260356 is 653062827.

It is an interprime number because it is at equal distance from previous prime (728260349) and next prime (728260363).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×728260356² = 1060726292242493472, which contains 22 as substring.

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, 30344170 + ... + 30344193.

Almost surely, 2^728260356 is an apocalyptic number.

It is an amenable number.

728260356 is an abundant number, since it is smaller than the sum of its proper divisors (971013836).

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

728260356 is a wasteful number, since it uses less digits than its factorization.

728260356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60688370 (or 60688368 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 728260356 is about 26986.2994128502. The cubic root of 728260356 is about 899.6955167535.

The spelling of 728260356 in words is "seven hundred twenty-eight million, two hundred sixty thousand, three hundred fifty-six".