42269669 has 4 divisors (see below), whose sum is σ = 45521196. Its totient is φ = 39018144.

The previous prime is 42269657. The next prime is 42269677. The reversal of 42269669 is 96696224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2137444 + 40132225 = 1462^2 + 6335^2 .

It is a cyclic number.

It is not a de Polignac number, because 42269669 - 2⁸ = 42269413 is a prime.

It is a super-2 number, since 2×42269669² = 3573449834739122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42269629) 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, 1625744 + ... + 1625769.

It is an arithmetic number, because the mean of its divisors is an integer number (11380299).

Almost surely, 2^42269669 is an apocalyptic number.

It is an amenable number.

42269669 is a deficient number, since it is larger than the sum of its proper divisors (3251527).

42269669 is a wasteful number, since it uses less digits than its factorization.

42269669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251526.

The product of its digits is 279936, while the sum is 44.

The square root of 42269669 is about 6501.5128239511. The cubic root of 42269669 is about 348.3450276262.

The spelling of 42269669 in words is "forty-two million, two hundred sixty-nine thousand, six hundred sixty-nine".