263740 has 12 divisors (see below), whose sum is σ = 553896. Its totient is φ = 105488.

The previous prime is 263737. The next prime is 263759. The reversal of 263740 is 47362.

It is a d-powerful number, because it can be written as 2³ + 6⁴ + 7² + 3⁵ + 4⁹ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6574 + ... + 6613.

It is an arithmetic number, because the mean of its divisors is an integer number (46158).

2²⁶³⁷⁴⁰ is an apocalyptic number.

263740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263740 is an abundant number, since it is smaller than the sum of its proper divisors (290156).

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

263740 is a wasteful number, since it uses less digits than its factorization.

263740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13196 (or 13194 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 263740 is about 513.5562286644. The cubic root of 263740 is about 64.1296201138.

The spelling of 263740 in words is "two hundred sixty-three thousand, seven hundred forty".