38104638 has 64 divisors (see below), whose sum is σ = 90720000. Its totient is φ = 10517760.

The previous prime is 38104631. The next prime is 38104643. The reversal of 38104638 is 83640183.

It is a super-2 number, since 2×38104638² = 2903926874222088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 38104599 and 38104608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38104631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76113 + ... + 76611.

It is an arithmetic number, because the mean of its divisors is an integer number (1417500).

Almost surely, 2^38104638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38104638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45360000).

38104638 is an abundant number, since it is smaller than the sum of its proper divisors (52615362).

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

38104638 is a wasteful number, since it uses less digits than its factorization.

38104638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 38104638 is about 6172.8954308331. The cubic root of 38104638 is about 336.5058459214.

It can be divided in two parts, 3810 and 4638, that added together give a palindrome (8448).

The spelling of 38104638 in words is "thirty-eight million, one hundred four thousand, six hundred thirty-eight".