42044065 has 32 divisors (see below), whose sum is σ = 59947776. Its totient is φ = 27709440.

The previous prime is 42044059. The next prime is 42044081. The reversal of 42044065 is 56044024.

It is not a de Polignac number, because 42044065 - 2⁹ = 42043553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118929 + ... + 119281.

It is an arithmetic number, because the mean of its divisors is an integer number (1873368).

Almost surely, 2^42044065 is an apocalyptic number.

It is an amenable number.

42044065 is a deficient number, since it is larger than the sum of its proper divisors (17903711).

42044065 is a wasteful number, since it uses less digits than its factorization.

42044065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 42044065 is about 6484.1394957234. The cubic root of 42044065 is about 347.7241863759.

Adding to 42044065 its reverse (56044024), we get a palindrome (98088089).

The spelling of 42044065 in words is "forty-two million, forty-four thousand, sixty-five".