4386438 has 48 divisors (see below), whose sum is σ = 11222016. Its totient is φ = 1211760.

The previous prime is 4386419. The next prime is 4386443. The reversal of 4386438 is 8346834.

4386438 is a `hidden beast` number, since 4 + 3 + 8 + 643 + 8 = 666.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3345 + ... + 4467.

It is an arithmetic number, because the mean of its divisors is an integer number (233792).

Almost surely, 2^4386438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4386438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5611008).

4386438 is an abundant number, since it is smaller than the sum of its proper divisors (6835578).

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

4386438 is a wasteful number, since it uses less digits than its factorization.

4386438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1166 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 4386438 is about 2094.3824865578. The cubic root of 4386438 is about 163.6957227410.

The spelling of 4386438 in words is "four million, three hundred eighty-six thousand, four hundred thirty-eight".