2921642112 has 128 divisors (see below), whose sum is σ = 7896268800. Its totient is φ = 957035520.

The previous prime is 2921642099. The next prime is 2921642159. The reversal of 2921642112 is 2112461292.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×2921642112² = 17071985261223641088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2921642112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6778537 + ... + 6778967.

It is an arithmetic number, because the mean of its divisors is an integer number (61689600).

Almost surely, 2^2921642112 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 2921642112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3948134400).

2921642112 is an abundant number, since it is smaller than the sum of its proper divisors (4974626688).

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

2921642112 is a wasteful number, since it uses less digits than its factorization.

2921642112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 702 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 2921642112 is about 54052.2165317945. The cubic root of 2921642112 is about 1429.5817826018.

The spelling of 2921642112 in words is "two billion, nine hundred twenty-one million, six hundred forty-two thousand, one hundred twelve".