42667445 has 8 divisors (see below), whose sum is σ = 53895840. Its totient is φ = 32337360.

The previous prime is 42667423. The next prime is 42667451. The reversal of 42667445 is 54476624.

42667445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42667445 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42667399 and 42667408.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 224471 + ... + 224660.

It is an arithmetic number, because the mean of its divisors is an integer number (6736980).

Almost surely, 2^42667445 is an apocalyptic number.

It is an amenable number.

42667445 is a deficient number, since it is larger than the sum of its proper divisors (11228395).

42667445 is a wasteful number, since it uses less digits than its factorization.

42667445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449155.

The product of its digits is 161280, while the sum is 38.

The square root of 42667445 is about 6532.0322258850. The cubic root of 42667445 is about 349.4343106841.

It can be divided in two parts, 4266 and 7445, that added together give a palindrome (11711).

The spelling of 42667445 in words is "forty-two million, six hundred sixty-seven thousand, four hundred forty-five".