2112400344 has 16 divisors (see below), whose sum is σ = 5281000920. Its totient is φ = 704133440.

The previous prime is 2112400333. The next prime is 2112400363. The reversal of 2112400344 is 4430042112.

It is a self number, because there is not a number n which added to its sum of digits gives 2112400344.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44008317 + ... + 44008364.

Almost surely, 2^2112400344 is an apocalyptic number.

2112400344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2112400344 is an abundant number, since it is smaller than the sum of its proper divisors (3168600576).

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

2112400344 is a wasteful number, since it uses less digits than its factorization.

2112400344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88016690 (or 88016686 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2112400344 is about 45960.8566499799. The cubic root of 2112400344 is about 1283.0947948768.

Adding to 2112400344 its reverse (4430042112), we get a palindrome (6542442456).

The spelling of 2112400344 in words is "two billion, one hundred twelve million, four hundred thousand, three hundred forty-four".