42244125 has 144 divisors (see below), whose sum is σ = 94610880. Its totient is φ = 16632000.

The previous prime is 42244109. The next prime is 42244129. The reversal of 42244125 is 52144224.

It is a happy number.

It is not a de Polignac number, because 42244125 - 2⁴ = 42244109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42244095 and 42244104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42244129) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2223366 + ... + 2223384.

It is an arithmetic number, because the mean of its divisors is an integer number (657020).

Almost surely, 2^42244125 is an apocalyptic number.

It is an amenable number.

42244125 is an abundant number, since it is smaller than the sum of its proper divisors (52366755).

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

42244125 is a wasteful number, since it uses less digits than its factorization.

42244125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 45 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 42244125 is about 6499.5480612116. The cubic root of 42244125 is about 348.2748439807.

Adding to 42244125 its reverse (52144224), we get a palindrome (94388349).

Subtracting 42244125 from its reverse (52144224), we obtain a palindrome (9900099).

The spelling of 42244125 in words is "forty-two million, two hundred forty-four thousand, one hundred twenty-five".