201335442 has 64 divisors (see below), whose sum is σ = 504244224. Its totient is φ = 52064640.

The previous prime is 201335411. The next prime is 201335443. The reversal of 201335442 is 244533102.

It is not an unprimeable number, because it can be changed into a prime (201335443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120678 + ... + 122334.

It is an arithmetic number, because the mean of its divisors is an integer number (7878816).

Almost surely, 2^201335442 is an apocalyptic number.

201335442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 201335442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252122112).

201335442 is an abundant number, since it is smaller than the sum of its proper divisors (302908782).

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

201335442 is a wasteful number, since it uses less digits than its factorization.

201335442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 201335442 is about 14189.2720743525. The cubic root of 201335442 is about 586.1022799801.

Adding to 201335442 its reverse (244533102), we get a palindrome (445868544).

The spelling of 201335442 in words is "two hundred one million, three hundred thirty-five thousand, four hundred forty-two".