38161657 has 8 divisors (see below), whose sum is σ = 38991456. Its totient is φ = 37340832.

The previous prime is 38161649. The next prime is 38161667. The reversal of 38161657 is 75616183.

38161657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38161657 - 2³ = 38161649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38161637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6733 + ... + 11029.

It is an arithmetic number, because the mean of its divisors is an integer number (4873932).

Almost surely, 2^38161657 is an apocalyptic number.

It is an amenable number.

38161657 is a deficient number, since it is larger than the sum of its proper divisors (829799).

38161657 is a wasteful number, since it uses less digits than its factorization.

38161657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its digits is 30240, while the sum is 37.

The square root of 38161657 is about 6177.5122015258. The cubic root of 38161657 is about 336.6736090890.

The spelling of 38161657 in words is "thirty-eight million, one hundred sixty-one thousand, six hundred fifty-seven".