42068969 has 4 divisors (see below), whose sum is σ = 42268560. Its totient is φ = 41869380.

The previous prime is 42068959. The next prime is 42068987. The reversal of 42068969 is 96986024.

42068969 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42068969 is a prime.

It is a super-2 number, since 2×42068969² = 3539596305445922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42068959) 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, 99479 + ... + 99900.

It is an arithmetic number, because the mean of its divisors is an integer number (10567140).

Almost surely, 2^42068969 is an apocalyptic number.

It is an amenable number.

42068969 is a deficient number, since it is larger than the sum of its proper divisors (199591).

42068969 is a wasteful number, since it uses less digits than its factorization.

42068969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199590.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 42068969 is about 6486.0595896122. The cubic root of 42068969 is about 347.7928287546.

The spelling of 42068969 in words is "forty-two million, sixty-eight thousand, nine hundred sixty-nine".