201233240 has 32 divisors (see below), whose sum is σ = 487604880. Its totient is φ = 74301312.

The previous prime is 201233239. The next prime is 201233243. The reversal of 201233240 is 42332102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201233243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192974 + ... + 194013.

Almost surely, 2^201233240 is an apocalyptic number.

201233240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201233240 is an abundant number, since it is smaller than the sum of its proper divisors (286371640).

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

201233240 is a wasteful number, since it uses less digits than its factorization.

201233240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387011 (or 387007 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 201233240 is about 14185.6702344302. The cubic root of 201233240 is about 586.0030906817.

Adding to 201233240 its reverse (42332102), we get a palindrome (243565342).

The spelling of 201233240 in words is "two hundred one million, two hundred thirty-three thousand, two hundred forty".