42438267 has 12 divisors (see below), whose sum is σ = 64526280. Its totient is φ = 26803008.

The previous prime is 42438257. The next prime is 42438271. The reversal of 42438267 is 76283424.

It is not a de Polignac number, because 42438267 - 2⁴ = 42438251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42438217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123918 + ... + 124259.

It is an arithmetic number, because the mean of its divisors is an integer number (5377190).

Almost surely, 2^42438267 is an apocalyptic number.

42438267 is a deficient number, since it is larger than the sum of its proper divisors (22088013).

42438267 is a wasteful number, since it uses less digits than its factorization.

42438267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248202 (or 248199 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 42438267 is about 6514.4659796487. The cubic root of 42438267 is about 348.8075528404.

The spelling of 42438267 in words is "forty-two million, four hundred thirty-eight thousand, two hundred sixty-seven".