43024340 has 48 divisors (see below), whose sum is σ = 94630032. Its totient is φ = 16413696.

The previous prime is 43024327. The next prime is 43024343. The reversal of 43024340 is 4342034.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1085764 + 41938576 = 1042^2 + 6476^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43024343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38672 + ... + 39768.

It is an arithmetic number, because the mean of its divisors is an integer number (1971459).

Almost surely, 2^43024340 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 43024340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47315016).

43024340 is an abundant number, since it is smaller than the sum of its proper divisors (51605692).

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

43024340 is a wasteful number, since it uses less digits than its factorization.

43024340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 43024340 is about 6559.2941693447. The cubic root of 43024340 is about 350.4058964452.

Adding to 43024340 its reverse (4342034), we get a palindrome (47366374).

The spelling of 43024340 in words is "forty-three million, twenty-four thousand, three hundred forty".