43214340 has 96 divisors (see below), whose sum is σ = 138015360. Its totient is φ = 10008576.

The previous prime is 43214333. The next prime is 43214351. The reversal of 43214340 is 4341234.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11631 + ... + 14889.

It is an arithmetic number, because the mean of its divisors is an integer number (1437660).

Almost surely, 2^43214340 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 43214340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69007680).

43214340 is an abundant number, since it is smaller than the sum of its proper divisors (94801020).

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

43214340 is a wasteful number, since it uses less digits than its factorization.

43214340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3299 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 43214340 is about 6573.7614803094. The cubic root of 43214340 is about 350.9209487482.

Adding to 43214340 its reverse (4341234), we get a palindrome (47555574).

The spelling of 43214340 in words is "forty-three million, two hundred fourteen thousand, three hundred forty".