869442 has 32 divisors (see below), whose sum is σ = 2015232. Its totient is φ = 244944.

The previous prime is 869437. The next prime is 869443. The reversal of 869442 is 244968.

It is an Ulam number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (869443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5253 + ... + 5415.

It is an arithmetic number, because the mean of its divisors is an integer number (62976).

2⁸⁶⁹⁴⁴² is an apocalyptic number.

869442 is an abundant number, since it is smaller than the sum of its proper divisors (1145790).

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

869442 is a wasteful number, since it uses less digits than its factorization.

869442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302.

The product of its digits is 13824, while the sum is 33.

The square root of 869442 is about 932.4387379340. The cubic root of 869442 is about 95.4436131780.

The spelling of 869442 in words is "eight hundred sixty-nine thousand, four hundred forty-two".