43220442 has 8 divisors (see below), whose sum is σ = 86440896. Its totient is φ = 14406812.

The previous prime is 43220431. The next prime is 43220449. The reversal of 43220442 is 24402234.

It is a sphenic number, since it is the product of 3 distinct primes.

43220442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (43220449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3601698 + ... + 3601709.

It is an arithmetic number, because the mean of its divisors is an integer number (10805112).

Almost surely, 2^43220442 is an apocalyptic number.

43220442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

43220442 is a wasteful number, since it uses less digits than its factorization.

43220442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203412.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 43220442 is about 6574.2255817701. The cubic root of 43220442 is about 350.9374650161.

Adding to 43220442 its reverse (24402234), we get a palindrome (67622676).

The spelling of 43220442 in words is "forty-three million, two hundred twenty thousand, four hundred forty-two".