240442263 has 20 divisors (see below), whose sum is σ = 359650720. Its totient is φ = 160084512.

The previous prime is 240442229. The next prime is 240442289. The reversal of 240442263 is 362244042.

It is not a de Polignac number, because 240442263 - 2¹³ = 240434071 is a prime.

It is a super-2 number, since 2×240442263² = 115624963673122338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240442463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 82731 + ... + 85587.

It is an arithmetic number, because the mean of its divisors is an integer number (17982536).

Almost surely, 2^240442263 is an apocalyptic number.

240442263 is a deficient number, since it is larger than the sum of its proper divisors (119208457).

240442263 is a wasteful number, since it uses less digits than its factorization.

240442263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 240442263 is about 15506.2007919413. The cubic root of 240442263 is about 621.8279930564.

The spelling of 240442263 in words is "two hundred forty million, four hundred forty-two thousand, two hundred sixty-three".