240220243 has 16 divisors (see below), whose sum is σ = 254513664. Its totient is φ = 226441440.

The previous prime is 240220241. The next prime is 240220247. The reversal of 240220243 is 342022042.

240220243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 240220243 - 2¹ = 240220241 is a prime.

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 240220243.

It is not an unprimeable number, because it can be changed into a prime (240220241) 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, 185428 + ... + 186718.

It is an arithmetic number, because the mean of its divisors is an integer number (15907104).

Almost surely, 2^240220243 is an apocalyptic number.

240220243 is a deficient number, since it is larger than the sum of its proper divisors (14293421).

240220243 is a wasteful number, since it uses less digits than its factorization.

240220243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 240220243 is about 15499.0400670493. The cubic root of 240220243 is about 621.6365392404.

Adding to 240220243 its reverse (342022042), we get a palindrome (582242285).

The spelling of 240220243 in words is "two hundred forty million, two hundred twenty thousand, two hundred forty-three".