859452 has 48 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 244480.

The previous prime is 859447. The next prime is 859459. The reversal of 859452 is 254958.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 859452.

It is not an unprimeable number, because it can be changed into a prime (859459) by changing a digit.

859452 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053 + ... + 2435.

It is an arithmetic number, because the mean of its divisors is an integer number (48384).

2⁸⁵⁹⁴⁵² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 859452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1161216).

859452 is an abundant number, since it is smaller than the sum of its proper divisors (1462980).

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

859452 is a wasteful number, since it uses less digits than its factorization.

859452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 416 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 859452 is about 927.0663406682. The cubic root of 859452 is about 95.0766509721.

It can be divided in two parts, 8594 and 52, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 859452 in words is "eight hundred fifty-nine thousand, four hundred fifty-two".