240013331 has 4 divisors (see below), whose sum is σ = 242710200. Its totient is φ = 237316464.

The previous prime is 240013321. The next prime is 240013343. The reversal of 240013331 is 133310042.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240013331 - 2²² = 235819027 is a prime.

It is a super-2 number, since 2×240013331² = 115212798115431122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240013321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348301 + ... + 1348478.

It is an arithmetic number, because the mean of its divisors is an integer number (60677550).

Almost surely, 2^240013331 is an apocalyptic number.

240013331 is a deficient number, since it is larger than the sum of its proper divisors (2696869).

240013331 is an equidigital number, since it uses as much as digits as its factorization.

240013331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696868.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 240013331 is about 15492.3636350300. The cubic root of 240013331 is about 621.4580072323.

Adding to 240013331 its reverse (133310042), we get a palindrome (373323373).

The spelling of 240013331 in words is "two hundred forty million, thirteen thousand, three hundred thirty-one".