240231243 has 16 divisors (see below), whose sum is σ = 366523136. Its totient is φ = 137103840.

The previous prime is 240231217. The next prime is 240231253. The reversal of 240231243 is 342132042.

240231243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 240231243 - 2¹² = 240227147 is a prime.

It is a super-2 number, since 2×240231243² = 115422100226650098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (240231253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11208 + ... + 24618.

It is an arithmetic number, because the mean of its divisors is an integer number (22907696).

Almost surely, 2^240231243 is an apocalyptic number.

240231243 is a deficient number, since it is larger than the sum of its proper divisors (126291893).

240231243 is a wasteful number, since it uses less digits than its factorization.

240231243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14274.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 240231243 is about 15499.3949236736. The cubic root of 240231243 is about 621.6460276131.

Adding to 240231243 its reverse (342132042), we get a palindrome (582363285).

The spelling of 240231243 in words is "two hundred forty million, two hundred thirty-one thousand, two hundred forty-three".