240380243 has 4 divisors (see below), whose sum is σ = 240728808. Its totient is φ = 240031680.

The previous prime is 240380233. The next prime is 240380249. The reversal of 240380243 is 342083042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240380243 - 2¹⁴ = 240363859 is a prime.

It is a super-2 number, since 2×240380243² = 115565322449478098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240380249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173246 + ... + 174627.

It is an arithmetic number, because the mean of its divisors is an integer number (60182202).

Almost surely, 2^240380243 is an apocalyptic number.

240380243 is a deficient number, since it is larger than the sum of its proper divisors (348565).

240380243 is an equidigital number, since it uses as much as digits as its factorization.

240380243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348564.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 240380243 is about 15504.2008178429. The cubic root of 240380243 is about 621.7745234098.

The spelling of 240380243 in words is "two hundred forty million, three hundred eighty thousand, two hundred forty-three".