43424140 has 24 divisors (see below), whose sum is σ = 91409472. Its totient is φ = 17328000.

The previous prime is 43424111. The next prime is 43424153. The reversal of 43424140 is 4142434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6765 + ... + 11515.

It is an arithmetic number, because the mean of its divisors is an integer number (3808728).

Almost surely, 2^43424140 is an apocalyptic number.

It is an amenable number.

43424140 is an abundant number, since it is smaller than the sum of its proper divisors (47985332).

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

43424140 is a wasteful number, since it uses less digits than its factorization.

43424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217 (or 5215 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 43424140 is about 6589.6995379152. The cubic root of 43424140 is about 351.4879240597.

Adding to 43424140 its reverse (4142434), we get a palindrome (47566574).

It can be divided in two parts, 434241 and 40, that added together give a square (434281 = 659²).

The spelling of 43424140 in words is "forty-three million, four hundred twenty-four thousand, one hundred forty".