201133944 has 72 divisors (see below), whose sum is σ = 598787280. Its totient is φ = 60947040.

The previous prime is 201133939. The next prime is 201133949. The reversal of 201133944 is 449331102.

It is an interprime number because it is at equal distance from previous prime (201133939) and next prime (201133949).

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201133949) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2832 + ... + 20255.

It is an arithmetic number, because the mean of its divisors is an integer number (8316490).

Almost surely, 2^201133944 is an apocalyptic number.

201133944 is a gapful number since it is divisible by the number (24) 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 201133944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299393640).

201133944 is an abundant number, since it is smaller than the sum of its proper divisors (397653336).

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

201133944 is a wasteful number, since it uses less digits than its factorization.

201133944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23121 (or 23103 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 201133944 is about 14182.1699327007. The cubic root of 201133944 is about 585.9066895501.

The spelling of 201133944 in words is "two hundred one million, one hundred thirty-three thousand, nine hundred forty-four".