240340331 has 8 divisors (see below), whose sum is σ = 299645184. Its totient is φ = 187278120.

The previous prime is 240340327. The next prime is 240340349. The reversal of 240340331 is 133043042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240340331 - 2² = 240340327 is a prime.

It is a super-2 number, since 2×240340331² = 115526949410379122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240340231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560575 + ... + 1560728.

It is an arithmetic number, because the mean of its divisors is an integer number (37455648).

Almost surely, 2^240340331 is an apocalyptic number.

240340331 is a deficient number, since it is larger than the sum of its proper divisors (59304853).

240340331 is a wasteful number, since it uses less digits than its factorization.

240340331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121321.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 240340331 is about 15502.9136293795. The cubic root of 240340331 is about 621.7401089919.

Adding to 240340331 its reverse (133043042), we get a palindrome (373383373).

The spelling of 240340331 in words is "two hundred forty million, three hundred forty thousand, three hundred thirty-one".