38421944 has 32 divisors (see below), whose sum is σ = 79680240. Its totient is φ = 17222400.

The previous prime is 38421941. The next prime is 38421953. The reversal of 38421944 is 44912483.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38421941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3434 + ... + 9414.

Almost surely, 2^38421944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38421944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39840120).

38421944 is an abundant number, since it is smaller than the sum of its proper divisors (41258296).

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

38421944 is a wasteful number, since it uses less digits than its factorization.

38421944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071 (or 6067 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 38421944 is about 6198.5436999347. The cubic root of 38421944 is about 337.4373187664.

The spelling of 38421944 in words is "thirty-eight million, four hundred twenty-one thousand, nine hundred forty-four".