42272869 has 4 divisors (see below), whose sum is σ = 42331744. Its totient is φ = 42213996.

The previous prime is 42272849. The next prime is 42272887. The reversal of 42272869 is 96827224.

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 not a de Polignac number, because 42272869 - 2⁵ = 42272837 is a prime.

It is a super-2 number, since 2×42272869² = 3573990906982322, 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 (42272849) 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, 28347 + ... + 29800.

It is an arithmetic number, because the mean of its divisors is an integer number (10582936).

Almost surely, 2^42272869 is an apocalyptic number.

It is an amenable number.

42272869 is a deficient number, since it is larger than the sum of its proper divisors (58875).

42272869 is an equidigital number, since it uses as much as digits as its factorization.

42272869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58874.

The product of its digits is 96768, while the sum is 40.

The square root of 42272869 is about 6501.7589158627. The cubic root of 42272869 is about 348.3538178217.

The spelling of 42272869 in words is "forty-two million, two hundred seventy-two thousand, eight hundred sixty-nine".