7738938 has 24 divisors (see below), whose sum is σ = 16862976. Its totient is φ = 2565000.

The previous prime is 7738937. The next prime is 7738943. The reversal of 7738938 is 8398377.

It is a super-2 number, since 2×7738938² = 119782322735688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7738893 and 7738902.

It is not an unprimeable number, because it can be changed into a prime (7738937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2313 + ... + 4563.

It is an arithmetic number, because the mean of its divisors is an integer number (702624).

Almost surely, 2^7738938 is an apocalyptic number.

7738938 is an abundant number, since it is smaller than the sum of its proper divisors (9124038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7738938 is a wasteful number, since it uses less digits than its factorization.

7738938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450 (or 2447 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 7738938 is about 2781.8946780926. The cubic root of 7738938 is about 197.8003803885.

The spelling of 7738938 in words is "seven million, seven hundred thirty-eight thousand, nine hundred thirty-eight".