42438967 has 4 divisors (see below), whose sum is σ = 42624520. Its totient is φ = 42253416.

The previous prime is 42438961. The next prime is 42438973. The reversal of 42438967 is 76983424.

42438967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42438961) and next prime (42438973).

It is a cyclic number.

It is not a de Polignac number, because 42438967 - 2³ = 42438959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42438961) 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 3 ways as a sum of consecutive naturals, for example, 92433 + ... + 92890.

It is an arithmetic number, because the mean of its divisors is an integer number (10656130).

Almost surely, 2^42438967 is an apocalyptic number.

42438967 is a deficient number, since it is larger than the sum of its proper divisors (185553).

42438967 is a wasteful number, since it uses less digits than its factorization.

42438967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185552.

The product of its digits is 290304, while the sum is 43.

The square root of 42438967 is about 6514.5197060106. The cubic root of 42438967 is about 348.8094706374.

The spelling of 42438967 in words is "forty-two million, four hundred thirty-eight thousand, nine hundred sixty-seven".