38156387 has 4 divisors (see below), whose sum is σ = 38172456. Its totient is φ = 38140320.

The previous prime is 38156359. The next prime is 38156399. The reversal of 38156387 is 78365183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38156387 - 2¹⁶ = 38090851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38156317) 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 3 ways as a sum of consecutive naturals, for example, 3689 + ... + 9482.

It is an arithmetic number, because the mean of its divisors is an integer number (9543114).

Almost surely, 2^38156387 is an apocalyptic number.

38156387 is a deficient number, since it is larger than the sum of its proper divisors (16069).

38156387 is a wasteful number, since it uses less digits than its factorization.

38156387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16068.

The product of its digits is 120960, while the sum is 41.

The square root of 38156387 is about 6177.0856396848. The cubic root of 38156387 is about 336.6581105342.

The spelling of 38156387 in words is "thirty-eight million, one hundred fifty-six thousand, three hundred eighty-seven".