240000331 has 4 divisors (see below), whose sum is σ = 250435152. Its totient is φ = 229565512.

The previous prime is 240000323. The next prime is 240000359. The reversal of 240000331 is 133000042.

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 240000331 - 2³ = 240000323 is a prime.

It is a super-2 number, since 2×240000331² = 115200317760219122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240000311) 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, 5217376 + ... + 5217421.

It is an arithmetic number, because the mean of its divisors is an integer number (62608788).

Almost surely, 2^240000331 is an apocalyptic number.

240000331 is a deficient number, since it is larger than the sum of its proper divisors (10434821).

240000331 is a wasteful number, since it uses less digits than its factorization.

240000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10434820.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 240000331 is about 15491.9440678050. The cubic root of 240000331 is about 621.4467868834.

Adding to 240000331 its reverse (133000042), we get a palindrome (373000373).

The spelling of 240000331 in words is "two hundred forty million, three hundred thirty-one", and thus it is an aban number.