263257042 has 16 divisors (see below), whose sum is σ = 402993792. Its totient is φ = 128934000.

The previous prime is 263257039. The next prime is 263257061. The reversal of 263257042 is 240752362.

It is a junction number, because it is equal to n+sod(n) for n = 263256995 and 263257013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77953 + ... + 81259.

It is an arithmetic number, because the mean of its divisors is an integer number (25187112).

Almost surely, 2^263257042 is an apocalyptic number.

263257042 is a deficient number, since it is larger than the sum of its proper divisors (139736750).

263257042 is a wasteful number, since it uses less digits than its factorization.

263257042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 263257042 is about 16225.1977491801. The cubic root of 263257042 is about 640.9045169354.

The spelling of 263257042 in words is "two hundred sixty-three million, two hundred fifty-seven thousand, forty-two".