262780 has 24 divisors (see below), whose sum is σ = 631008. Its totient is φ = 90048.

The previous prime is 262747. The next prime is 262781. The reversal of 262780 is 87262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262781) by changing a digit.

262780 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 799 + ... + 1078.

It is an arithmetic number, because the mean of its divisors is an integer number (26292).

2²⁶²⁷⁸⁰ is an apocalyptic number.

262780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

262780 is an abundant number, since it is smaller than the sum of its proper divisors (368228).

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

262780 is a wasteful number, since it uses less digits than its factorization.

262780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 262780 is about 512.6207174900. The cubic root of 262780 is about 64.0517160115.

The spelling of 262780 in words is "two hundred sixty-two thousand, seven hundred eighty".