7940338 has 16 divisors (see below), whose sum is σ = 13844160. Its totient is φ = 3344976.

The previous prime is 7940333. The next prime is 7940341. The reversal of 7940338 is 8330497.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7940333) 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, 3981 + ... + 5632.

It is an arithmetic number, because the mean of its divisors is an integer number (865260).

Almost surely, 2^7940338 is an apocalyptic number.

7940338 is a deficient number, since it is larger than the sum of its proper divisors (5903822).

7940338 is a wasteful number, since it uses less digits than its factorization.

7940338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9681.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 7940338 is about 2817.8605359386. The cubic root of 7940338 is about 199.5015755639.

The spelling of 7940338 in words is "seven million, nine hundred forty thousand, three hundred thirty-eight".