7439938 has 16 divisors (see below), whose sum is σ = 12568320. Its totient is φ = 3272400.

The previous prime is 7439933. The next prime is 7439951. The reversal of 7439938 is 8399347.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7439894 and 7439903.

It is not an unprimeable number, because it can be changed into a prime (7439933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4773 + ... + 6136.

It is an arithmetic number, because the mean of its divisors is an integer number (785520).

Almost surely, 2^7439938 is an apocalyptic number.

7439938 is a deficient number, since it is larger than the sum of its proper divisors (5128382).

7439938 is a wasteful number, since it uses less digits than its factorization.

7439938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953.

The product of its digits is 163296, while the sum is 43.

The square root of 7439938 is about 2727.6249742221. The cubic root of 7439938 is about 195.2194592544.

The spelling of 7439938 in words is "seven million, four hundred thirty-nine thousand, nine hundred thirty-eight".