43420242 has 8 divisors (see below), whose sum is σ = 86840496. Its totient is φ = 14473412.

The previous prime is 43420241. The next prime is 43420253. The reversal of 43420242 is 24202434.

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

43420242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (43420241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3618348 + ... + 3618359.

It is an arithmetic number, because the mean of its divisors is an integer number (10855062).

Almost surely, 2^43420242 is an apocalyptic number.

43420242 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.

43420242 is a wasteful number, since it uses less digits than its factorization.

43420242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236712.

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

The square root of 43420242 is about 6589.4037666545. The cubic root of 43420242 is about 351.4774065540.

Adding to 43420242 its reverse (24202434), we get a palindrome (67622676).

The spelling of 43420242 in words is "forty-three million, four hundred twenty thousand, two hundred forty-two".