263847842 has 8 divisors (see below), whose sum is σ = 401193516. Its totient is φ = 130116672.

The previous prime is 263847821. The next prime is 263847847. The reversal of 263847842 is 248748362.

It is a happy number.

263847842 is digitally balanced in base 3, 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 2 ways, for example, as 222875041 + 40972801 = 14929^2 + 6401^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 263847793 and 263847802.

It is not an unprimeable number, because it can be changed into a prime (263847847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903443 + ... + 903734.

Almost surely, 2^263847842 is an apocalyptic number.

263847842 is a deficient number, since it is larger than the sum of its proper divisors (137345674).

263847842 is a wasteful number, since it uses less digits than its factorization.

263847842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807252.

The product of its digits is 516096, while the sum is 44.

The square root of 263847842 is about 16243.3937956327. The cubic root of 263847842 is about 641.3835968571.

The spelling of 263847842 in words is "two hundred sixty-three million, eight hundred forty-seven thousand, eight hundred forty-two".