263456464 has 10 divisors (see below), whose sum is σ = 510446930. Its totient is φ = 131728224.

The previous prime is 263456461. The next prime is 263456477. The reversal of 263456464 is 464654362.

It can be written as a sum of positive squares in only one way, i.e., 213160000 + 50296464 = 14600^2 + 7092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263456461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232999 + ... + 8233030.

It is an arithmetic number, because the mean of its divisors is an integer number (51044693).

Almost surely, 2^263456464 is an apocalyptic number.

It is an amenable number.

263456464 is a deficient number, since it is larger than the sum of its proper divisors (246990466).

263456464 is a wasteful number, since it uses less digits than its factorization.

263456464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16466037 (or 16466031 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

The square root of 263456464 is about 16231.3420270784. The cubic root of 263456464 is about 641.0663083672.

The spelling of 263456464 in words is "two hundred sixty-three million, four hundred fifty-six thousand, four hundred sixty-four".