42869907 has 24 divisors (see below), whose sum is σ = 65523744. Its totient is φ = 26953344.

The previous prime is 42869899. The next prime is 42869923. The reversal of 42869907 is 70996824.

It is a happy number.

It is not a de Polignac number, because 42869907 - 2³ = 42869899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42869987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13693 + ... + 16529.

It is an arithmetic number, because the mean of its divisors is an integer number (2730156).

Almost surely, 2^42869907 is an apocalyptic number.

42869907 is a deficient number, since it is larger than the sum of its proper divisors (22653837).

42869907 is a wasteful number, since it uses less digits than its factorization.

42869907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 42869907 is about 6547.5115120174. The cubic root of 42869907 is about 349.9861409478.

The spelling of 42869907 in words is "forty-two million, eight hundred sixty-nine thousand, nine hundred seven".