3938446 has 4 divisors (see below), whose sum is σ = 5907672. Its totient is φ = 1969222.

The previous prime is 3938437. The next prime is 3938447. The reversal of 3938446 is 6448393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6448393 = 7 ⋅921199.

It is a super-2 number, since 2×3938446² = 31022713789832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984610 + ... + 984613.

It is an arithmetic number, because the mean of its divisors is an integer number (1476918).

Almost surely, 2^3938446 is an apocalyptic number.

3938446 is a deficient number, since it is larger than the sum of its proper divisors (1969226).

3938446 is a wasteful number, since it uses less digits than its factorization.

3938446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969225.

The product of its digits is 62208, while the sum is 37.

The square root of 3938446 is about 1984.5518385772. The cubic root of 3938446 is about 157.9216350159.

The spelling of 3938446 in words is "three million, nine hundred thirty-eight thousand, four hundred forty-six".