263870742 has 8 divisors (see below), whose sum is σ = 527741496. Its totient is φ = 87956912.

The previous prime is 263870741. The next prime is 263870767. The reversal of 263870742 is 247078362.

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

263870742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 263870742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263870741) 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, 21989223 + ... + 21989234.

It is an arithmetic number, because the mean of its divisors is an integer number (65967687).

Almost surely, 2^263870742 is an apocalyptic number.

263870742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263870742 is a wasteful number, since it uses less digits than its factorization.

263870742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43978462.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 263870742 is about 16244.0986822907. The cubic root of 263870742 is about 641.4021520710.

The spelling of 263870742 in words is "two hundred sixty-three million, eight hundred seventy thousand, seven hundred forty-two".