42424265 has 16 divisors (see below), whose sum is σ = 58051728. Its totient is φ = 29485056.

The previous prime is 42424243. The next prime is 42424279. The reversal of 42424265 is 56242424.

It can be written as a sum of positive squares in 8 ways, for example, as 1923769 + 40500496 = 1387^2 + 6364^2 .

It is a cyclic number.

It is not a de Polignac number, because 42424265 - 2⁶ = 42424201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18092 + ... + 20301.

It is an arithmetic number, because the mean of its divisors is an integer number (3628233).

Almost surely, 2^42424265 is an apocalyptic number.

It is an amenable number.

42424265 is a deficient number, since it is larger than the sum of its proper divisors (15627463).

42424265 is a wasteful number, since it uses less digits than its factorization.

42424265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38428.

The product of its digits is 15360, while the sum is 29.

The square root of 42424265 is about 6513.3912058159. The cubic root of 42424265 is about 348.7691869901.

Adding to 42424265 its reverse (56242424), we get a palindrome (98666689).

The spelling of 42424265 in words is "forty-two million, four hundred twenty-four thousand, two hundred sixty-five".