842457568 has 24 divisors (see below), whose sum is σ = 1745883720. Its totient is φ = 399058560.

The previous prime is 842457533. The next prime is 842457571. The reversal of 842457568 is 865754248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692203 + ... + 693418.

It is an arithmetic number, because the mean of its divisors is an integer number (72745155).

Almost surely, 2^842457568 is an apocalyptic number.

It is an amenable number.

842457568 is an abundant number, since it is smaller than the sum of its proper divisors (903426152).

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

842457568 is a wasteful number, since it uses less digits than its factorization.

842457568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385650 (or 1385642 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 49.

The square root of 842457568 is about 29025.1196035434. The cubic root of 842457568 is about 944.4580631495.

The spelling of 842457568 in words is "eight hundred forty-two million, four hundred fifty-seven thousand, five hundred sixty-eight".