842450624 has 56 divisors (see below), whose sum is σ = 1749113088. Its totient is φ = 401829120.

The previous prime is 842450617. The next prime is 842450629. The reversal of 842450624 is 426054248.

It is a Cunningham number, because it is equal to 29025²-1.

It is not an unprimeable number, because it can be changed into a prime (842450629) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 928379 + ... + 929285.

Almost surely, 2^842450624 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 842450624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874556544).

842450624 is an abundant number, since it is smaller than the sum of its proper divisors (906662464).

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

842450624 is a wasteful number, since it uses less digits than its factorization.

842450624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573 (or 1563 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 842450624 is about 29024.9999827735. Note that the first 4 decimals coincide. The cubic root of 842450624 is about 944.4554682276.

The spelling of 842450624 in words is "eight hundred forty-two million, four hundred fifty thousand, six hundred twenty-four".