42444335 has 4 divisors (see below), whose sum is σ = 50933208. Its totient is φ = 33955464.

The previous prime is 42444331. The next prime is 42444377. The reversal of 42444335 is 53344424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42444335 - 2² = 42444331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42444298 and 42444307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4244429 + ... + 4244438.

It is an arithmetic number, because the mean of its divisors is an integer number (12733302).

Almost surely, 2^42444335 is an apocalyptic number.

42444335 is a deficient number, since it is larger than the sum of its proper divisors (8488873).

42444335 is an equidigital number, since it uses as much as digits as its factorization.

42444335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8488872.

The product of its digits is 23040, while the sum is 29.

The square root of 42444335 is about 6514.9316957279. The cubic root of 42444335 is about 348.8241766998.

Adding to 42444335 its reverse (53344424), we get a palindrome (95788759).

The spelling of 42444335 in words is "forty-two million, four hundred forty-four thousand, three hundred thirty-five".