38613136 has 40 divisors (see below), whose sum is σ = 78548544. Its totient is φ = 18353280.

The previous prime is 38613121. The next prime is 38613139. The reversal of 38613136 is 63131683.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 38613098 and 38613107.

It is not an unprimeable number, because it can be changed into a prime (38613139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116491 + ... + 116821.

Almost surely, 2^38613136 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 38613136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39274272).

38613136 is an abundant number, since it is smaller than the sum of its proper divisors (39935408).

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

38613136 is a wasteful number, since it uses less digits than its factorization.

38613136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 38613136 is about 6213.9468938831. The cubic root of 38613136 is about 337.9961018656.

The spelling of 38613136 in words is "thirty-eight million, six hundred thirteen thousand, one hundred thirty-six".