42442126 has 4 divisors (see below), whose sum is σ = 63663192. Its totient is φ = 21221062.

The previous prime is 42442097. The next prime is 42442129. The reversal of 42442126 is 62124424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42442126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42442129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610530 + ... + 10610533.

It is an arithmetic number, because the mean of its divisors is an integer number (15915798).

Almost surely, 2^42442126 is an apocalyptic number.

42442126 is a deficient number, since it is larger than the sum of its proper divisors (21221066).

42442126 is a wasteful number, since it uses less digits than its factorization.

42442126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21221065.

The product of its digits is 3072, while the sum is 25.

The square root of 42442126 is about 6514.7621598950. The cubic root of 42442126 is about 348.8181251190.

The spelling of 42442126 in words is "forty-two million, four hundred forty-two thousand, one hundred twenty-six".