263042331 has 8 divisors (see below), whose sum is σ = 351322944. Its totient is φ = 175061640.

The previous prime is 263042281. The next prime is 263042357. The reversal of 263042331 is 133240362.

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

It is not a de Polignac number, because 263042331 - 2⁷ = 263042203 is a prime.

It is a super-2 number, since 2×263042331² = 138382535795827122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (263042231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72925 + ... + 76446.

It is an arithmetic number, because the mean of its divisors is an integer number (43915368).

Almost surely, 2^263042331 is an apocalyptic number.

263042331 is a deficient number, since it is larger than the sum of its proper divisors (88280613).

263042331 is a wasteful number, since it uses less digits than its factorization.

263042331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149961.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 263042331 is about 16218.5798083556. The cubic root of 263042331 is about 640.7302301411.

Adding to 263042331 its reverse (133240362), we get a palindrome (396282693).

The spelling of 263042331 in words is "two hundred sixty-three million, forty-two thousand, three hundred thirty-one".