38509136 has 10 divisors (see below), whose sum is σ = 74611482. Its totient is φ = 19254560.

The previous prime is 38509109. The next prime is 38509139. The reversal of 38509136 is 63190583.

It can be written as a sum of positive squares in only one way, i.e., 30913600 + 7595536 = 5560^2 + 2756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38509096 and 38509105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38509139) 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 as a sum of consecutive naturals, namely, 1203395 + ... + 1203426.

Almost surely, 2^38509136 is an apocalyptic number.

It is an amenable number.

38509136 is a deficient number, since it is larger than the sum of its proper divisors (36102346).

38509136 is a wasteful number, since it uses less digits than its factorization.

38509136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406829 (or 2406823 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 38509136 is about 6205.5729791857. The cubic root of 38509136 is about 337.6923779307.

The spelling of 38509136 in words is "thirty-eight million, five hundred nine thousand, one hundred thirty-six".