868169424 has 80 divisors (see below), whose sum is σ = 2336725440. Its totient is φ = 277509120.

The previous prime is 868169399. The next prime is 868169453. The reversal of 868169424 is 424961868.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 112374 + ... + 119850.

It is an arithmetic number, because the mean of its divisors is an integer number (29209068).

Almost surely, 2^868169424 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 868169424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168362720).

868169424 is an abundant number, since it is smaller than the sum of its proper divisors (1468556016).

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

868169424 is a wasteful number, since it uses less digits than its factorization.

868169424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588 (or 7582 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 868169424 is about 29464.7148976534. The cubic root of 868169424 is about 953.9702446231.

The spelling of 868169424 in words is "eight hundred sixty-eight million, one hundred sixty-nine thousand, four hundred twenty-four".