42244545 has 16 divisors (see below), whose sum is σ = 77247360. Its totient is φ = 19311744.

The previous prime is 42244519. The next prime is 42244549. The reversal of 42244545 is 54544224.

It is not a de Polignac number, because 42244545 - 2⁶ = 42244481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42244549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201060 + ... + 201269.

It is an arithmetic number, because the mean of its divisors is an integer number (4827960).

Almost surely, 2^42244545 is an apocalyptic number.

It is an amenable number.

42244545 is a deficient number, since it is larger than the sum of its proper divisors (35002815).

42244545 is a wasteful number, since it uses less digits than its factorization.

42244545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402344.

The product of its digits is 25600, while the sum is 30.

The square root of 42244545 is about 6499.5803710701. The cubic root of 42244545 is about 348.2759981841.

Adding to 42244545 its reverse (54544224), we get a palindrome (96788769).

The spelling of 42244545 in words is "forty-two million, two hundred forty-four thousand, five hundred forty-five".