43214140 has 48 divisors (see below), whose sum is σ = 93915360. Its totient is φ = 16692480.

The previous prime is 43214131. The next prime is 43214141. The reversal of 43214140 is 4141234.

43214140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43214141) 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, 93510 + ... + 93970.

It is an arithmetic number, because the mean of its divisors is an integer number (1956570).

Almost surely, 2^43214140 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 43214140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46957680).

43214140 is an abundant number, since it is smaller than the sum of its proper divisors (50701220).

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

43214140 is a wasteful number, since it uses less digits than its factorization.

43214140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 43214140 is about 6573.7462683009. The cubic root of 43214140 is about 350.9204073824.

Adding to 43214140 its reverse (4141234), we get a palindrome (47355374).

The spelling of 43214140 in words is "forty-three million, two hundred fourteen thousand, one hundred forty".