263240422 has 8 divisors (see below), whose sum is σ = 405532656. Its totient is φ = 128062872.

The previous prime is 263240407. The next prime is 263240449. The reversal of 263240422 is 224042362.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1778578 + ... + 1778725.

It is an arithmetic number, because the mean of its divisors is an integer number (50691582).

Almost surely, 2^263240422 is an apocalyptic number.

263240422 is a deficient number, since it is larger than the sum of its proper divisors (142292234).

263240422 is a wasteful number, since it uses less digits than its factorization.

263240422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557342.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 263240422 is about 16224.6855747654. The cubic root of 263240422 is about 640.8910294112.

Adding to 263240422 its reverse (224042362), we get a palindrome (487282784).

The spelling of 263240422 in words is "two hundred sixty-three million, two hundred forty thousand, four hundred twenty-two".