42424442 has 8 divisors (see below), whose sum is σ = 63667296. Its totient is φ = 21202012.

The previous prime is 42424429. The next prime is 42424451. The reversal of 42424442 is 24442424.

42424442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×42424442² = 3599666558022728, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153 + ... + 9459.

It is an arithmetic number, because the mean of its divisors is an integer number (7958412).

Almost surely, 2^42424442 is an apocalyptic number.

42424442 is a deficient number, since it is larger than the sum of its proper divisors (21242854).

42424442 is a wasteful number, since it uses less digits than its factorization.

42424442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212.

The product of its digits is 8192, while the sum is 26.

The square root of 42424442 is about 6513.4047931938. The cubic root of 42424442 is about 348.7696720275.

Adding to 42424442 its reverse (24442424), we get a palindrome (66866866).

The spelling of 42424442 in words is "forty-two million, four hundred twenty-four thousand, four hundred forty-two".