38423808 has 180 divisors, whose sum is σ = 122425380. Its totient is φ = 11943936.

The previous prime is 38423779. The next prime is 38423831. The reversal of 38423808 is 80832483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28387584 + 10036224 = 5328^2 + 3168^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 352458 + ... + 352566.

It is an arithmetic number, because the mean of its divisors is an integer number (680141).

Almost surely, 2^38423808 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 38423808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61212690).

38423808 is an abundant number, since it is smaller than the sum of its proper divisors (84001572).

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

38423808 is a wasteful number, since it uses less digits than its factorization.

38423808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 38423808 is about 6198.6940560089. The cubic root of 38423808 is about 337.4427754831.

The spelling of 38423808 in words is "thirty-eight million, four hundred twenty-three thousand, eight hundred eight".