263450943 has 12 divisors (see below), whose sum is σ = 434903248. Its totient is φ = 150543360.

The previous prime is 263450939. The next prime is 263450951. The reversal of 263450943 is 349054362.

It is not a de Polignac number, because 263450943 - 2² = 263450939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263450898 and 263450907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263450963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2090818 + ... + 2090943.

Almost surely, 2^263450943 is an apocalyptic number.

263450943 is a deficient number, since it is larger than the sum of its proper divisors (171452305).

263450943 is a wasteful number, since it uses less digits than its factorization.

263450943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181774 (or 4181771 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 263450943 is about 16231.1719539903. The cubic root of 263450943 is about 641.0618302689.

The spelling of 263450943 in words is "two hundred sixty-three million, four hundred fifty thousand, nine hundred forty-three".