3930394 has 8 divisors (see below), whose sum is σ = 6349140. Its totient is φ = 1814016.

The previous prime is 3930391. The next prime is 3930439. The reversal of 3930394 is 4930393.

It can be written as a sum of positive squares in 2 ways, for example, as 3861225 + 69169 = 1965^2 + 263^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3930391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75559 + ... + 75610.

Almost surely, 2^3930394 is an apocalyptic number.

3930394 is a deficient number, since it is larger than the sum of its proper divisors (2418746).

3930394 is a wasteful number, since it uses less digits than its factorization.

3930394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151184.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 3930394 is about 1982.5221310240. The cubic root of 3930394 is about 157.8139400385.

Subtracting 3930394 from its reverse (4930393), we obtain a palindrome (999999).

The spelling of 3930394 in words is "three million, nine hundred thirty thousand, three hundred ninety-four".