42269369 has 4 divisors (see below), whose sum is σ = 42422244. Its totient is φ = 42116496.

The previous prime is 42269351. The next prime is 42269371. The reversal of 42269369 is 96396224.

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 13249600 + 29019769 = 3640^2 + 5387^2 .

It is a cyclic number.

It is not a de Polignac number, because 42269369 - 2⁸ = 42269113 is a prime.

It is a super-2 number, since 2×42269369² = 3573399111316322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42269389) 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, 76022 + ... + 76575.

It is an arithmetic number, because the mean of its divisors is an integer number (10605561).

Almost surely, 2^42269369 is an apocalyptic number.

It is an amenable number.

42269369 is a deficient number, since it is larger than the sum of its proper divisors (152875).

42269369 is a wasteful number, since it uses less digits than its factorization.

42269369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152874.

The product of its digits is 139968, while the sum is 41.

The square root of 42269369 is about 6501.4897523568. The cubic root of 42269369 is about 348.3442035226.

The spelling of 42269369 in words is "forty-two million, two hundred sixty-nine thousand, three hundred sixty-nine".