869444352 has 432 divisors, whose sum is σ = 3101908992. Its totient is φ = 228925440.

The previous prime is 869444347. The next prime is 869444371. The reversal of 869444352 is 253444968.

Its product of digits (829440) is a multiple of the sum of its prime factors (144).

It is a junction number, because it is equal to n+sod(n) for n = 869444298 and 869444307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18498793 + ... + 18498839.

Almost surely, 2^869444352 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 869444352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1550954496).

869444352 is an abundant number, since it is smaller than the sum of its proper divisors (2232464640).

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

869444352 is a wasteful number, since it uses less digits than its factorization.

869444352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 127 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 869444352 is about 29486.3417873428. The cubic root of 869444352 is about 954.4369924208.

The spelling of 869444352 in words is "eight hundred sixty-nine million, four hundred forty-four thousand, three hundred fifty-two".