201332340 has 144 divisors (see below), whose sum is σ = 695350656. Its totient is φ = 46675200.

The previous prime is 201332293. The next prime is 201332347. The reversal of 201332340 is 43233102.

It is a super-2 number, since 2×201332340² = 81069422259751200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201332347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43330 + ... + 47750.

It is an arithmetic number, because the mean of its divisors is an integer number (4828824).

Almost surely, 2^201332340 is an apocalyptic number.

201332340 is a gapful number since it is divisible by the number (20) 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 201332340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347675328).

201332340 is an abundant number, since it is smaller than the sum of its proper divisors (494018316).

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

201332340 is a wasteful number, since it uses less digits than its factorization.

201332340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 201332340 is about 14189.1627659986. The cubic root of 201332340 is about 586.0992699146.

Adding to 201332340 its reverse (43233102), we get a palindrome (244565442).

The spelling of 201332340 in words is "two hundred one million, three hundred thirty-two thousand, three hundred forty".