8438738 has 32 divisors (see below), whose sum is σ = 16219008. Its totient is φ = 3196800.

The previous prime is 8438699. The next prime is 8438741. The reversal of 8438738 is 8378348.

It is a junction number, because it is equal to n+sod(n) for n = 8438695 and 8438704.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4958 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (506844).

Almost surely, 2^8438738 is an apocalyptic number.

8438738 is a deficient number, since it is larger than the sum of its proper divisors (7780270).

8438738 is a wasteful number, since it uses less digits than its factorization.

8438738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538.

The product of its digits is 129024, while the sum is 41.

The square root of 8438738 is about 2904.9506019896. The cubic root of 8438738 is about 203.5912776436.

The spelling of 8438738 in words is "eight million, four hundred thirty-eight thousand, seven hundred thirty-eight".