43070440 has 64 divisors (see below), whose sum is σ = 111922560. Its totient is φ = 14611200.

The previous prime is 43070437. The next prime is 43070441. The reversal of 43070440 is 4407034.

It is not an unprimeable number, because it can be changed into a prime (43070441) 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, 27519 + ... + 29041.

It is an arithmetic number, because the mean of its divisors is an integer number (1748790).

Almost surely, 2^43070440 is an apocalyptic number.

43070440 is a gapful number since it is divisible by the number (40) 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 43070440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55961280).

43070440 is an abundant number, since it is smaller than the sum of its proper divisors (68852120).

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

43070440 is a wasteful number, since it uses less digits than its factorization.

43070440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 43070440 is about 6562.8073261372. The cubic root of 43070440 is about 350.5310035029.

Adding to 43070440 its reverse (4407034), we get a palindrome (47477474).

The spelling of 43070440 in words is "forty-three million, seventy thousand, four hundred forty".