7838338 has 4 divisors (see below), whose sum is σ = 11757510. Its totient is φ = 3919168.

The previous prime is 7838333. The next prime is 7838351. The reversal of 7838338 is 8338387.

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

It can be written as a sum of positive squares in only one way, i.e., 7823209 + 15129 = 2797^2 + 123^2 .

It is a super-2 number, since 2×7838338² = 122879085204488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 7838338.

It is not an unprimeable number, because it can be changed into a prime (7838333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959583 + ... + 1959586.

Almost surely, 2^7838338 is an apocalyptic number.

7838338 is a deficient number, since it is larger than the sum of its proper divisors (3919172).

7838338 is a wasteful number, since it uses less digits than its factorization.

7838338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919171.

The product of its digits is 96768, while the sum is 40.

The square root of 7838338 is about 2799.7031985552. The cubic root of 7838338 is about 198.6436388836.

It can be divided in two parts, 78 and 38338, that added together give a 4-th power (38416 = 14⁴).

The spelling of 7838338 in words is "seven million, eight hundred thirty-eight thousand, three hundred thirty-eight".