263956742 has 16 divisors (see below), whose sum is σ = 464727840. Its totient is φ = 110066688.

The previous prime is 263956687. The next prime is 263956757. The reversal of 263956742 is 247659362.

It is a junction number, because it is equal to n+sod(n) for n = 263956693 and 263956702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254267 + ... + 255302.

It is an arithmetic number, because the mean of its divisors is an integer number (29045490).

Almost surely, 2^263956742 is an apocalyptic number.

263956742 is a deficient number, since it is larger than the sum of its proper divisors (200771098).

263956742 is a wasteful number, since it uses less digits than its factorization.

263956742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509615.

The product of its digits is 544320, while the sum is 44.

The square root of 263956742 is about 16246.7455818081. The cubic root of 263956742 is about 641.4718258226.

The spelling of 263956742 in words is "two hundred sixty-three million, nine hundred fifty-six thousand, seven hundred forty-two".