240211243 has 8 divisors (see below), whose sum is σ = 257140800. Its totient is φ = 223710408.

The previous prime is 240211217. The next prime is 240211259. The reversal of 240211243 is 342112042.

240211243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-240211243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240211243.

It is not an unprimeable number, because it can be changed into a prime (240211273) 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, 106021 + ... + 108262.

It is an arithmetic number, because the mean of its divisors is an integer number (32142600).

Almost surely, 2^240211243 is an apocalyptic number.

240211243 is a deficient number, since it is larger than the sum of its proper divisors (16929557).

240211243 is a wasteful number, since it uses less digits than its factorization.

240211243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214361.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 240211243 is about 15498.7497237680. The cubic root of 240211243 is about 621.6287758110.

Adding to 240211243 its reverse (342112042), we get a palindrome (582323285).

The spelling of 240211243 in words is "two hundred forty million, two hundred eleven thousand, two hundred forty-three".