43400112 has 80 divisors (see below), whose sum is σ = 131634432. Its totient is φ = 12061440.

The previous prime is 43400111. The next prime is 43400131. The reversal of 43400112 is 21100434.

43400112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×43400112³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 43400091 and 43400100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43400111) 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 15 ways as a sum of consecutive naturals, for example, 10687 + ... + 14177.

Almost surely, 2^43400112 is an apocalyptic number.

43400112 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43400112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65817216).

43400112 is an abundant number, since it is smaller than the sum of its proper divisors (88234320).

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

43400112 is a wasteful number, since it uses less digits than its factorization.

43400112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546 (or 3540 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 43400112 is about 6587.8761372691. The cubic root of 43400112 is about 351.4230821688.

Adding to 43400112 its reverse (21100434), we get a palindrome (64500546).

The spelling of 43400112 in words is "forty-three million, four hundred thousand, one hundred twelve".