805242 has 8 divisors (see below), whose sum is σ = 1610496. Its totient is φ = 268412.

The previous prime is 805241. The next prime is 805249. The reversal of 805242 is 242508.

805242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

805242 is an admirable number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (805241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67098 + ... + 67109.

It is an arithmetic number, because the mean of its divisors is an integer number (201312).

2⁸⁰⁵²⁴² is an apocalyptic number.

805242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

805242 is a wasteful number, since it uses less digits than its factorization.

805242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134212.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 805242 is about 897.3527734397. The cubic root of 805242 is about 93.0340954878.

The spelling of 805242 in words is "eight hundred five thousand, two hundred forty-two".