42023965 has 8 divisors (see below), whose sum is σ = 51380568. Its totient is φ = 32984640.

The previous prime is 42023959. The next prime is 42023999. The reversal of 42023965 is 56932024.

It can be written as a sum of positive squares in 4 ways, for example, as 9156676 + 32867289 = 3026^2 + 5733^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42023965 - 2³ = 42023957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79026 + ... + 79555.

It is an arithmetic number, because the mean of its divisors is an integer number (6422571).

Almost surely, 2^42023965 is an apocalyptic number.

It is an amenable number.

42023965 is a deficient number, since it is larger than the sum of its proper divisors (9356603).

42023965 is a wasteful number, since it uses less digits than its factorization.

42023965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158639.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 42023965 is about 6482.5893746249. The cubic root of 42023965 is about 347.6687653930.

Adding to 42023965 its reverse (56932024), we get a palindrome (98955989).

The spelling of 42023965 in words is "forty-two million, twenty-three thousand, nine hundred sixty-five".