38138156 has 24 divisors (see below), whose sum is σ = 76581120. Its totient is φ = 16279632.

The previous prime is 38138143. The next prime is 38138167. The reversal of 38138156 is 65183183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4775 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (3190880).

Almost surely, 2^38138156 is an apocalyptic number.

It is an amenable number.

38138156 is an abundant number, since it is smaller than the sum of its proper divisors (38442964).

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

38138156 is a wasteful number, since it uses less digits than its factorization.

38138156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453 (or 5451 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 38138156 is about 6175.6097674643. The cubic root of 38138156 is about 336.6044839353.

The spelling of 38138156 in words is "thirty-eight million, one hundred thirty-eight thousand, one hundred fifty-six".