263242449 has 6 divisors (see below), whose sum is σ = 380239106. Its totient is φ = 175494960.

The previous prime is 263242391. The next prime is 263242451. The reversal of 263242449 is 944242362.

263242449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 221057424 + 42185025 = 14868^2 + 6495^2 .

It is not a de Polignac number, because 263242449 - 2¹¹ = 263240401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263242249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14624572 + ... + 14624589.

Almost surely, 2^263242449 is an apocalyptic number.

It is an amenable number.

263242449 is a deficient number, since it is larger than the sum of its proper divisors (116996657).

263242449 is a wasteful number, since it uses less digits than its factorization.

263242449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29249167 (or 29249164 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 263242449 is about 16224.7480411870. The cubic root of 263242449 is about 640.8926744001.

The spelling of 263242449 in words is "two hundred sixty-three million, two hundred forty-two thousand, four hundred forty-nine".