3964442 has 8 divisors (see below), whose sum is σ = 5962836. Its totient is φ = 1976832.

The previous prime is 3964423. The next prime is 3964463. The reversal of 3964442 is 2444693.

It can be written as a sum of positive squares in 2 ways, for example, as 3964081 + 361 = 1991^2 + 19^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 3964399 and 3964408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703 + ... + 3290.

Almost surely, 2^3964442 is an apocalyptic number.

3964442 is a deficient number, since it is larger than the sum of its proper divisors (1998394).

3964442 is a wasteful number, since it uses less digits than its factorization.

3964442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392.

The product of its digits is 20736, while the sum is 32.

The square root of 3964442 is about 1991.0906558969. The cubic root of 3964442 is about 158.2683310892.

The spelling of 3964442 in words is "three million, nine hundred sixty-four thousand, four hundred forty-two".