842133620 has 12 divisors (see below), whose sum is σ = 1768480644. Its totient is φ = 336853440.

The previous prime is 842133583. The next prime is 842133659. The reversal of 842133620 is 26331248.

It can be written as a sum of positive squares in 2 ways, for example, as 636956644 + 205176976 = 25238^2 + 14324^2 .

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, 21053321 + ... + 21053360.

It is an arithmetic number, because the mean of its divisors is an integer number (147373387).

Almost surely, 2^842133620 is an apocalyptic number.

It is an amenable number.

842133620 is an abundant number, since it is smaller than the sum of its proper divisors (926347024).

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

842133620 is a wasteful number, since it uses less digits than its factorization.

842133620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42106690 (or 42106688 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 842133620 is about 29019.5385904049. The cubic root of 842133620 is about 944.3369909687.

Adding to 842133620 its reverse (26331248), we get a palindrome (868464868).

The spelling of 842133620 in words is "eight hundred forty-two million, one hundred thirty-three thousand, six hundred twenty".