7438845 has 8 divisors (see below), whose sum is σ = 11902176. Its totient is φ = 3967376.

The previous prime is 7438841. The next prime is 7438891. The reversal of 7438845 is 5488347.

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

It is a cyclic number.

It is not a de Polignac number, because 7438845 - 2² = 7438841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7438841) 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 7 ways as a sum of consecutive naturals, for example, 247947 + ... + 247976.

It is an arithmetic number, because the mean of its divisors is an integer number (1487772).

Almost surely, 2^7438845 is an apocalyptic number.

It is an amenable number.

7438845 is a deficient number, since it is larger than the sum of its proper divisors (4463331).

7438845 is a wasteful number, since it uses less digits than its factorization.

7438845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495931.

The product of its digits is 107520, while the sum is 39.

The square root of 7438845 is about 2727.4246094072. The cubic root of 7438845 is about 195.2098989006.

The spelling of 7438845 in words is "seven million, four hundred thirty-eight thousand, eight hundred forty-five".