842549568 has 224 divisors, whose sum is σ = 2660782080. Its totient is φ = 230307840.

The previous prime is 842549503. The next prime is 842549573. The reversal of 842549568 is 865945248.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a self number, because there is not a number n which added to its sum of digits gives 842549568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3525193 + ... + 3525431.

Almost surely, 2^842549568 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 842549568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1330391040).

842549568 is an abundant number, since it is smaller than the sum of its proper divisors (1818232512).

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

842549568 is a wasteful number, since it uses less digits than its factorization.

842549568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 355 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The square root of 842549568 is about 29026.7043944021. The cubic root of 842549568 is about 944.4924415295.

The spelling of 842549568 in words is "eight hundred forty-two million, five hundred forty-nine thousand, five hundred sixty-eight".