942181212 has 120 divisors (see below), whose sum is σ = 2617299216. Its totient is φ = 263687424.

The previous prime is 942181199. The next prime is 942181217. The reversal of 942181212 is 212181249.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 942181212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942181217) 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 39 ways as a sum of consecutive naturals, for example, 1526728 + ... + 1527344.

Almost surely, 2^942181212 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 942181212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308649608).

942181212 is an abundant number, since it is smaller than the sum of its proper divisors (1675118004).

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

942181212 is a wasteful number, since it uses less digits than its factorization.

942181212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 682 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 942181212 is about 30694.9704674886. The cubic root of 942181212 is about 980.3432131201.

The spelling of 942181212 in words is "nine hundred forty-two million, one hundred eighty-one thousand, two hundred twelve".