262840 has 16 divisors (see below), whose sum is σ = 591480. Its totient is φ = 105120.

The previous prime is 262819. The next prime is 262853. The reversal of 262840 is 48262.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3246 + ... + 3325.

2²⁶²⁸⁴⁰ is an apocalyptic number.

262840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

262840 is an abundant number, since it is smaller than the sum of its proper divisors (328640).

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

262840 is a wasteful number, since it uses less digits than its factorization.

262840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582 (or 6578 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 262840 is about 512.6792369504. The cubic root of 262840 is about 64.0565905713.

The spelling of 262840 in words is "two hundred sixty-two thousand, eight hundred forty".