42569919 has 12 divisors (see below), whose sum is σ = 70274256. Its totient is φ = 24325632.

The previous prime is 42569911. The next prime is 42569939. The reversal of 42569919 is 91996524.

42569919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42569919 - 2³ = 42569911 is a prime.

It is a super-2 number, since 2×42569919² = 3624396007333122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42569911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337794 + ... + 337919.

It is an arithmetic number, because the mean of its divisors is an integer number (5856188).

Almost surely, 2^42569919 is an apocalyptic number.

42569919 is a deficient number, since it is larger than the sum of its proper divisors (27704337).

42569919 is a wasteful number, since it uses less digits than its factorization.

42569919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675726 (or 675723 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 42569919 is about 6524.5627439699. The cubic root of 42569919 is about 349.1678707897.

The spelling of 42569919 in words is "forty-two million, five hundred sixty-nine thousand, nine hundred nineteen".