42444535 has 16 divisors (see below), whose sum is σ = 59400000. Its totient is φ = 29103648.

The previous prime is 42444533. The next prime is 42444539. The reversal of 42444535 is 53544424.

It is not a de Polignac number, because 42444535 - 2¹ = 42444533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42444497 and 42444506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444533) 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, 10660 + ... + 14089.

It is an arithmetic number, because the mean of its divisors is an integer number (3712500).

Almost surely, 2^42444535 is an apocalyptic number.

42444535 is a deficient number, since it is larger than the sum of its proper divisors (16955465).

42444535 is an equidigital number, since it uses as much as digits as its factorization.

42444535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24775 (or 24761 counting only the distinct ones).

The product of its digits is 38400, while the sum is 31.

The square root of 42444535 is about 6514.9470450649. The cubic root of 42444535 is about 348.8247245918.

Adding to 42444535 its reverse (53544424), we get a palindrome (95988959).

The spelling of 42444535 in words is "forty-two million, four hundred forty-four thousand, five hundred thirty-five".