38408136 has 64 divisors (see below), whose sum is σ = 104025600. Its totient is φ = 11747328.

The previous prime is 38408131. The next prime is 38408143. The reversal of 38408136 is 63180483.

It is a junction number, because it is equal to n+sod(n) for n = 38408097 and 38408106.

It is not an unprimeable number, because it can be changed into a prime (38408131) 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 15 ways as a sum of consecutive naturals, for example, 79945 + ... + 80423.

It is an arithmetic number, because the mean of its divisors is an integer number (1625400).

Almost surely, 2^38408136 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 38408136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52012800).

38408136 is an abundant number, since it is smaller than the sum of its proper divisors (65617464).

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

38408136 is a wasteful number, since it uses less digits than its factorization.

38408136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 754 counting only the distinct ones).

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

The square root of 38408136 is about 6197.4297898403. The cubic root of 38408136 is about 337.3968914109.

The spelling of 38408136 in words is "thirty-eight million, four hundred eight thousand, one hundred thirty-six".