853812432 has 120 divisors (see below), whose sum is σ = 2696747040. Its totient is φ = 249795840.

The previous prime is 853812409. The next prime is 853812433. The reversal of 853812432 is 234218358.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853812433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36643 + ... + 55229.

It is an arithmetic number, because the mean of its divisors is an integer number (22472892).

Almost surely, 2^853812432 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 853812432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1348373520).

853812432 is an abundant number, since it is smaller than the sum of its proper divisors (1842934608).

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

853812432 is a wasteful number, since it uses less digits than its factorization.

853812432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18641 (or 18632 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 853812432 is about 29220.0689937584. The cubic root of 853812432 is about 948.6823586994.

The spelling of 853812432 in words is "eight hundred fifty-three million, eight hundred twelve thousand, four hundred thirty-two".