842124912 has 80 divisors (see below), whose sum is σ = 2238190080. Its totient is φ = 272678400.

The previous prime is 842124863. The next prime is 842124917. The reversal of 842124912 is 219421248.

It is a super-2 number, since 2×842124912² = 1418348734822015488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842124917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532539 + ... + 534117.

It is an arithmetic number, because the mean of its divisors is an integer number (27977376).

Almost surely, 2^842124912 is an apocalyptic number.

842124912 is a gapful number since it is divisible by the number (82) 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 842124912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119095040).

842124912 is an abundant number, since it is smaller than the sum of its proper divisors (1396065168).

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

842124912 is a wasteful number, since it uses less digits than its factorization.

842124912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902 (or 1896 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 842124912 is about 29019.3885531725. The cubic root of 842124912 is about 944.3337360161. Note that the first 3 decimals are identical.

It can be divided in two parts, 8421 and 24912, that added together give a palindrome (33333).

The spelling of 842124912 in words is "eight hundred forty-two million, one hundred twenty-four thousand, nine hundred twelve".