201733728 has 96 divisors (see below), whose sum is σ = 607751424. Its totient is φ = 57395712.

The previous prime is 201733711. The next prime is 201733751. The reversal of 201733728 is 827337102.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 212551 + ... + 213497.

It is an arithmetic number, because the mean of its divisors is an integer number (6330744).

Almost surely, 2^201733728 is an apocalyptic number.

201733728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201733728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303875712).

201733728 is an abundant number, since it is smaller than the sum of its proper divisors (406017696).

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

201733728 is a wasteful number, since it uses less digits than its factorization.

201733728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 201733728 is about 14203.2998982631. The cubic root of 201733728 is about 586.4885053589.

The spelling of 201733728 in words is "two hundred one million, seven hundred thirty-three thousand, seven hundred twenty-eight".