201526728 has 64 divisors (see below), whose sum is σ = 544272960. Its totient is φ = 61814016.

The previous prime is 201526693. The next prime is 201526747. The reversal of 201526728 is 827625102.

201526728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201526728² = 81226044196771968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123051 + ... + 124677.

It is an arithmetic number, because the mean of its divisors is an integer number (8504265).

Almost surely, 2^201526728 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 201526728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272136480).

201526728 is an abundant number, since it is smaller than the sum of its proper divisors (342746232).

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

201526728 is a wasteful number, since it uses less digits than its factorization.

201526728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 201526728 is about 14196.0109890067. The cubic root of 201526728 is about 586.2878370992.

The spelling of 201526728 in words is "two hundred one million, five hundred twenty-six thousand, seven hundred twenty-eight".