869233040 has 80 divisors (see below), whose sum is σ = 2222857728. Its totient is φ = 314101248.

The previous prime is 869233031. The next prime is 869233063. The reversal of 869233040 is 40332968.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39989 + ... + 57771.

Almost surely, 2^869233040 is an apocalyptic number.

869233040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869233040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1111428864).

869233040 is an abundant number, since it is smaller than the sum of its proper divisors (1353624688).

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

869233040 is a wasteful number, since it uses less digits than its factorization.

869233040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17856 (or 17850 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 869233040 is about 29482.7583512805. The cubic root of 869233040 is about 954.3596632121.

The spelling of 869233040 in words is "eight hundred sixty-nine million, two hundred thirty-three thousand, forty".