728051652 has 120 divisors (see below), whose sum is σ = 2016131040. Its totient is φ = 228458880.

The previous prime is 728051629. The next prime is 728051659. The reversal of 728051652 is 256150827.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (728051659) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1397152 + ... + 1397672.

It is an arithmetic number, because the mean of its divisors is an integer number (16801092).

Almost surely, 2^728051652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728051652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008065520).

728051652 is an abundant number, since it is smaller than the sum of its proper divisors (1288079388).

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

728051652 is a wasteful number, since it uses less digits than its factorization.

728051652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 728051652 is about 26982.4322847293. The cubic root of 728051652 is about 899.6095639797.

The spelling of 728051652 in words is "seven hundred twenty-eight million, fifty-one thousand, six hundred fifty-two".