43622340 has 48 divisors (see below), whose sum is σ = 129330432. Its totient is φ = 10948096.

The previous prime is 43622321. The next prime is 43622353. The reversal of 43622340 is 4322634.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43622340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20364 + ... + 22403.

It is an arithmetic number, because the mean of its divisors is an integer number (2694384).

Almost surely, 2^43622340 is an apocalyptic number.

It is an amenable number.

43622340 is an abundant number, since it is smaller than the sum of its proper divisors (85708092).

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

43622340 is a wasteful number, since it uses less digits than its factorization.

43622340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42796 (or 42794 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 43622340 is about 6604.7210387722. The cubic root of 43622340 is about 352.0218757927.

Adding to 43622340 its reverse (4322634), we get a palindrome (47944974).

The spelling of 43622340 in words is "forty-three million, six hundred twenty-two thousand, three hundred forty".