38491173 has 16 divisors (see below), whose sum is σ = 65170560. Its totient is φ = 21994848.

The previous prime is 38491171. The next prime is 38491199. The reversal of 38491173 is 37119483.

It is a happy number.

It is not a de Polignac number, because 38491173 - 2¹ = 38491171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38491171) 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 15 ways as a sum of consecutive naturals, for example, 101640 + ... + 102017.

It is an arithmetic number, because the mean of its divisors is an integer number (4073160).

Almost surely, 2^38491173 is an apocalyptic number.

It is an amenable number.

38491173 is a deficient number, since it is larger than the sum of its proper divisors (26679387).

38491173 is a wasteful number, since it uses less digits than its factorization.

38491173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203673 (or 203667 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 38491173 is about 6204.1254822900. The cubic root of 38491173 is about 337.6398630192.

The spelling of 38491173 in words is "thirty-eight million, four hundred ninety-one thousand, one hundred seventy-three".