3924438 has 64 divisors (see below), whose sum is σ = 9580032. Its totient is φ = 1048320.

The previous prime is 3924413. The next prime is 3924443. The reversal of 3924438 is 8344293.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3924399 and 3924408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74020 + ... + 74072.

It is an arithmetic number, because the mean of its divisors is an integer number (149688).

Almost surely, 2^3924438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3924438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4790016).

3924438 is an abundant number, since it is smaller than the sum of its proper divisors (5655594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3924438 is a wasteful number, since it uses less digits than its factorization.

3924438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its digits is 20736, while the sum is 33.

The square root of 3924438 is about 1981.0194345336. The cubic root of 3924438 is about 157.7341842504.

The spelling of 3924438 in words is "three million, nine hundred twenty-four thousand, four hundred thirty-eight".