240204231 has 8 divisors (see below), whose sum is σ = 355858160. Its totient is φ = 160136136.

The previous prime is 240204229. The next prime is 240204233. The reversal of 240204231 is 132402042.

240204231 is a `hidden beast` number, since 240 + 2 + 0 + 423 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (240204229) and next prime (240204233).

It is not a de Polignac number, because 240204231 - 2¹ = 240204229 is a prime.

It is a super-2 number, since 2×240204231² = 115396145180602722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240204233) 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, 4448200 + ... + 4448253.

It is an arithmetic number, because the mean of its divisors is an integer number (44482270).

Almost surely, 2^240204231 is an apocalyptic number.

240204231 is a deficient number, since it is larger than the sum of its proper divisors (115653929).

240204231 is an equidigital number, since it uses as much as digits as its factorization.

240204231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8896462 (or 8896456 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 240204231 is about 15498.5235103219. The cubic root of 240204231 is about 621.6227271024.

Adding to 240204231 its reverse (132402042), we get a palindrome (372606273).

The spelling of 240204231 in words is "two hundred forty million, two hundred four thousand, two hundred thirty-one".