42426444 has 24 divisors (see below), whose sum is σ = 103299840. Its totient is φ = 13527184.

The previous prime is 42426443. The next prime is 42426451. The reversal of 42426444 is 44462424.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (42426443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76584 + ... + 77135.

It is an arithmetic number, because the mean of its divisors is an integer number (4304160).

Almost surely, 2^42426444 is an apocalyptic number.

It is an amenable number.

42426444 is an abundant number, since it is smaller than the sum of its proper divisors (60873396).

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

42426444 is a wasteful number, since it uses less digits than its factorization.

42426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153749 (or 153747 counting only the distinct ones).

The product of its digits is 24576, while the sum is 30.

The square root of 42426444 is about 6513.5584744439. The cubic root of 42426444 is about 348.7751580623.

Adding to 42426444 its reverse (44462424), we get a palindrome (86888868).

The spelling of 42426444 in words is "forty-two million, four hundred twenty-six thousand, four hundred forty-four".