42447067 has 4 divisors (see below), whose sum is σ = 45712240. Its totient is φ = 39181896.

The previous prime is 42447049. The next prime is 42447071. The reversal of 42447067 is 76074424.

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

It is not a de Polignac number, because 42447067 - 2¹¹ = 42445019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42447047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1632567 + ... + 1632592.

It is an arithmetic number, because the mean of its divisors is an integer number (11428060).

Almost surely, 2^42447067 is an apocalyptic number.

42447067 is a deficient number, since it is larger than the sum of its proper divisors (3265173).

42447067 is a wasteful number, since it uses less digits than its factorization.

42447067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265172.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 42447067 is about 6515.1413645446. The cubic root of 42447067 is about 348.8316607548.

It can be divided in two parts, 4244 and 7067, that added together give a palindrome (11311).

The spelling of 42447067 in words is "forty-two million, four hundred forty-seven thousand, sixty-seven".