42966669 has 4 divisors (see below), whose sum is σ = 57288896. Its totient is φ = 28644444.

The previous prime is 42966653. The next prime is 42966709. The reversal of 42966669 is 96666924.

It is a happy number.

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 not a de Polignac number, because 42966669 - 2⁴ = 42966653 is a prime.

It is a super-2 number, since 2×42966669² = 3692269289911122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42962669) 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, 7161109 + ... + 7161114.

It is an arithmetic number, because the mean of its divisors is an integer number (14322224).

Almost surely, 2^42966669 is an apocalyptic number.

It is an amenable number.

42966669 is a deficient number, since it is larger than the sum of its proper divisors (14322227).

42966669 is a wasteful number, since it uses less digits than its factorization.

42966669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14322226.

The product of its digits is 839808, while the sum is 48.

The square root of 42966669 is about 6554.8965666897. The cubic root of 42966669 is about 350.2492618951.

The spelling of 42966669 in words is "forty-two million, nine hundred sixty-six thousand, six hundred sixty-nine".