263840094 has 48 divisors (see below), whose sum is σ = 664410240. Its totient is φ = 74103120.

The previous prime is 263840089. The next prime is 263840141. The reversal of 263840094 is 490048362.

It is a happy number.

It is a super-2 number, since 2×263840094² = 139223190403857672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10312 + ... + 25179.

It is an arithmetic number, because the mean of its divisors is an integer number (13841880).

Almost surely, 2^263840094 is an apocalyptic number.

263840094 is an abundant number, since it is smaller than the sum of its proper divisors (400570146).

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

263840094 is a wasteful number, since it uses less digits than its factorization.

263840094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35565 (or 35562 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 263840094 is about 16243.1552969243. The cubic root of 263840094 is about 641.3773186316.

The spelling of 263840094 in words is "two hundred sixty-three million, eight hundred forty thousand, ninety-four".