2112442452 has 72 divisors (see below), whose sum is σ = 5605681536. Its totient is φ = 669455424.

The previous prime is 2112442441. The next prime is 2112442459. The reversal of 2112442452 is 2542442112.

It is a happy number.

2112442452 is a `hidden beast` number, since 211 + 2 + 442 + 4 + 5 + 2 = 666.

It is a super-2 number, since 2×2112442452² = 8924826226023544608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112442459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130638 + ... + 145914.

It is an arithmetic number, because the mean of its divisors is an integer number (77856688).

Almost surely, 2^2112442452 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 2112442452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2802840768).

2112442452 is an abundant number, since it is smaller than the sum of its proper divisors (3493239084).

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

2112442452 is a wasteful number, since it uses less digits than its factorization.

2112442452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15477 (or 15472 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 2112442452 is about 45961.3147331536. The cubic root of 2112442452 is about 1283.1033204382.

Adding to 2112442452 its reverse (2542442112), we get a palindrome (4654884564).

The spelling of 2112442452 in words is "two billion, one hundred twelve million, four hundred forty-two thousand, four hundred fifty-two".