42422544 has 60 divisors (see below), whose sum is σ = 119571712. Its totient is φ = 14040000.

The previous prime is 42422533. The next prime is 42422581. The reversal of 42422544 is 44522424.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20769 + ... + 22719.

Almost surely, 2^42422544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42422544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59785856).

42422544 is an abundant number, since it is smaller than the sum of its proper divisors (77149168).

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

42422544 is a wasteful number, since it uses less digits than its factorization.

42422544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2107 counting only the distinct ones).

The product of its digits is 10240, while the sum is 27.

The square root of 42422544 is about 6513.2590920368. The cubic root of 42422544 is about 348.7644708221.

Adding to 42422544 its reverse (44522424), we get a palindrome (86944968).

It can be divided in two parts, 4242 and 2544, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 42422544 in words is "forty-two million, four hundred twenty-two thousand, five hundred forty-four".