240012243 has 12 divisors (see below), whose sum is σ = 347537320. Its totient is φ = 159614496.

The previous prime is 240012217. The next prime is 240012257. The reversal of 240012243 is 342210042.

It is not a de Polignac number, because 240012243 - 2⁸ = 240011987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240012343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28921 + ... + 36282.

Almost surely, 2^240012243 is an apocalyptic number.

240012243 is a deficient number, since it is larger than the sum of its proper divisors (107525077).

240012243 is a wasteful number, since it uses less digits than its factorization.

240012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65618 (or 65615 counting only the distinct ones).

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

The square root of 240012243 is about 15492.3285209164. The cubic root of 240012243 is about 621.4570681910.

Adding to 240012243 its reverse (342210042), we get a palindrome (582222285).

It can be divided in two parts, 24001 and 2243, that added together give a square (26244 = 162²).

The spelling of 240012243 in words is "two hundred forty million, twelve thousand, two hundred forty-three".