38166938 has 16 divisors (see below), whose sum is σ = 61304040. Its totient is φ = 17757696.

The previous prime is 38166937. The next prime is 38166979. The reversal of 38166938 is 83966183.

It can be written as a sum of positive squares in 4 ways, for example, as 30946969 + 7219969 = 5563^2 + 2687^2 .

It is not an unprimeable number, because it can be changed into a prime (38166937) 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 7 ways as a sum of consecutive naturals, for example, 3281 + ... + 9332.

Almost surely, 2^38166938 is an apocalyptic number.

38166938 is a deficient number, since it is larger than the sum of its proper divisors (23137102).

38166938 is a wasteful number, since it uses less digits than its factorization.

38166938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721.

The product of its digits is 186624, while the sum is 44.

The square root of 38166938 is about 6177.9396241789. The cubic root of 38166938 is about 336.6891385625.

The spelling of 38166938 in words is "thirty-eight million, one hundred sixty-six thousand, nine hundred thirty-eight".