201320240 has 40 divisors (see below), whose sum is σ = 510623568. Its totient is φ = 73207040.

The previous prime is 201320227. The next prime is 201320243. The reversal of 201320240 is 42023102.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (201320243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113507 + ... + 115266.

Almost surely, 2^201320240 is an apocalyptic number.

201320240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201320240 is an abundant number, since it is smaller than the sum of its proper divisors (309303328).

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

201320240 is a wasteful number, since it uses less digits than its factorization.

201320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228797 (or 228791 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 201320240 is about 14188.7363778456. The cubic root of 201320240 is about 586.0875282288.

Adding to 201320240 its reverse (42023102), we get a palindrome (243343342).

The spelling of 201320240 in words is "two hundred one million, three hundred twenty thousand, two hundred forty".