42204269 has 4 divisors (see below), whose sum is σ = 42473244. Its totient is φ = 41935296.

The previous prime is 42204247. The next prime is 42204277. The reversal of 42204269 is 96240224.

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 20702500 + 21501769 = 4550^2 + 4637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42204269 is a prime.

It is a super-2 number, since 2×42204269² = 3562400643648722, 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 (42204209) 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, 134252 + ... + 134565.

It is an arithmetic number, because the mean of its divisors is an integer number (10618311).

Almost surely, 2^42204269 is an apocalyptic number.

It is an amenable number.

42204269 is a deficient number, since it is larger than the sum of its proper divisors (268975).

42204269 is a wasteful number, since it uses less digits than its factorization.

42204269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268974.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 42204269 is about 6496.4812783537. The cubic root of 42204269 is about 348.1652807388.

The spelling of 42204269 in words is "forty-two million, two hundred four thousand, two hundred sixty-nine".