4138738 has 8 divisors (see below), whose sum is σ = 6263388. Its totient is φ = 2050944.

The previous prime is 4138723. The next prime is 4138741. The reversal of 4138738 is 8378314.

It can be written as a sum of positive squares in 2 ways, for example, as 3323329 + 815409 = 1823^2 + 903^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8931 + ... + 9382.

Almost surely, 2^4138738 is an apocalyptic number.

4138738 is a deficient number, since it is larger than the sum of its proper divisors (2124650).

4138738 is a wasteful number, since it uses less digits than its factorization.

4138738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18428.

The product of its digits is 16128, while the sum is 34.

The square root of 4138738 is about 2034.3888517194. The cubic root of 4138738 is about 160.5545600490.

The spelling of 4138738 in words is "four million, one hundred thirty-eight thousand, seven hundred thirty-eight".