262870 has 16 divisors (see below), whose sum is σ = 479808. Its totient is φ = 103680.

The previous prime is 262853. The next prime is 262877. The reversal of 262870 is 78262.

262870 = 105² + 106² + ... + 124².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (262877) by changing a digit.

262870 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, 835 + ... + 1105.

It is an arithmetic number, because the mean of its divisors is an integer number (29988).

2²⁶²⁸⁷⁰ is an apocalyptic number.

262870 is a deficient number, since it is larger than the sum of its proper divisors (216938).

262870 is a wasteful number, since it uses less digits than its factorization.

262870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

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

The square root of 262870 is about 512.7084941758. The cubic root of 262870 is about 64.0590275730.

The spelling of 262870 in words is "two hundred sixty-two thousand, eight hundred seventy".