864342 has 24 divisors (see below), whose sum is σ = 1934400. Its totient is φ = 278640.

The previous prime is 864341. The next prime is 864359. The reversal of 864342 is 243468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217 + ... + 1332.

It is an arithmetic number, because the mean of its divisors is an integer number (80600).

2⁸⁶⁴³⁴² is an apocalyptic number.

864342 is an abundant number, since it is smaller than the sum of its proper divisors (1070058).

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

864342 is a wasteful number, since it uses less digits than its factorization.

864342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588 (or 1585 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 864342 is about 929.6999515973. The cubic root of 864342 is about 95.2566283853.

It can be divided in two parts, 86434 and 2, that added together give a square (86436 = 294²).

The spelling of 864342 in words is "eight hundred sixty-four thousand, three hundred forty-two".