3943438 has 8 divisors (see below), whose sum is σ = 5976432. Its totient is φ = 1951296.

The previous prime is 3943427. The next prime is 3943451. The reversal of 3943438 is 8343493.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9970 + ... + 10357.

It is an arithmetic number, because the mean of its divisors is an integer number (747054).

Almost surely, 2^3943438 is an apocalyptic number.

3943438 is a deficient number, since it is larger than the sum of its proper divisors (2032994).

3943438 is a wasteful number, since it uses less digits than its factorization.

3943438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20426.

The product of its digits is 31104, while the sum is 34.

The square root of 3943438 is about 1985.8091549794. The cubic root of 3943438 is about 157.9883289996.

The spelling of 3943438 in words is "three million, nine hundred forty-three thousand, four hundred thirty-eight".