263448428 has 12 divisors (see below), whose sum is σ = 461577480. Its totient is φ = 131569152.

The previous prime is 263448421. The next prime is 263448461. The reversal of 263448428 is 824844362.

It is not an unprimeable number, because it can be changed into a prime (263448421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34901 + ... + 41772.

It is an arithmetic number, because the mean of its divisors is an integer number (38464790).

Almost surely, 2^263448428 is an apocalyptic number.

It is an amenable number.

263448428 is a deficient number, since it is larger than the sum of its proper divisors (198129052).

263448428 is a wasteful number, since it uses less digits than its factorization.

263448428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77536 (or 77534 counting only the distinct ones).

The product of its digits is 294912, while the sum is 41.

The square root of 263448428 is about 16231.0944794244. The cubic root of 263448428 is about 641.0597903248.

The spelling of 263448428 in words is "two hundred sixty-three million, four hundred forty-eight thousand, four hundred twenty-eight".