332729728 has 16 divisors (see below), whose sum is σ = 662860260. Its totient is φ = 166364800.

The previous prime is 332729723. The next prime is 332729741. The reversal of 332729728 is 827927233.

332729728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×332729728² = 221418143789907968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332729723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1299598 + ... + 1299853.

Almost surely, 2^332729728 is an apocalyptic number.

It is an amenable number.

332729728 is a deficient number, since it is larger than the sum of its proper divisors (330130532).

332729728 is an equidigital number, since it uses as much as digits as its factorization.

332729728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599465 (or 2599453 counting only the distinct ones).

The product of its digits is 254016, while the sum is 43.

The square root of 332729728 is about 18240.8806804935. The cubic root of 332729728 is about 692.9425049142.

The spelling of 332729728 in words is "three hundred thirty-two million, seven hundred twenty-nine thousand, seven hundred twenty-eight".