42448869 has 48 divisors (see below), whose sum is σ = 69189120. Its totient is φ = 24948000.

The previous prime is 42448853. The next prime is 42448871. The reversal of 42448869 is 96884424.

It is not a de Polignac number, because 42448869 - 2⁴ = 42448853 is a prime.

It is a super-2 number, since 2×42448869² = 3603812958758322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42448829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168994 + ... + 169244.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^42448869 is an apocalyptic number.

It is an amenable number.

42448869 is a deficient number, since it is larger than the sum of its proper divisors (26740251).

42448869 is a wasteful number, since it uses less digits than its factorization.

42448869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 339 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 42448869 is about 6515.2796563156. The cubic root of 42448869 is about 348.8365969871.

The spelling of 42448869 in words is "forty-two million, four hundred forty-eight thousand, eight hundred sixty-nine".