869442336 has 144 divisors (see below), whose sum is σ = 2930526144. Its totient is φ = 248396544.

The previous prime is 869442319. The next prime is 869442341. The reversal of 869442336 is 633244968.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 869442291 and 869442300.

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 23 ways as a sum of consecutive naturals, for example, 46446 + ... + 62418.

It is an arithmetic number, because the mean of its divisors is an integer number (20350876).

Almost surely, 2^869442336 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 869442336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465263072).

869442336 is an abundant number, since it is smaller than the sum of its proper divisors (2061083808).

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

869442336 is a wasteful number, since it uses less digits than its factorization.

869442336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16005 (or 15985 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 869442336 is about 29486.3076020040. The cubic root of 869442336 is about 954.4362547288.

The spelling of 869442336 in words is "eight hundred sixty-nine million, four hundred forty-two thousand, three hundred thirty-six".