38166493 has 8 divisors (see below), whose sum is σ = 39002040. Its totient is φ = 37340160.

The previous prime is 38166463. The next prime is 38166511. The reversal of 38166493 is 39466183.

It can be written as a sum of positive squares in 4 ways, for example, as 5299204 + 32867289 = 2302^2 + 5733^2 .

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 38166493 - 2⁵ = 38166461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38166463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6423 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (4875255).

Almost surely, 2^38166493 is an apocalyptic number.

It is an amenable number.

38166493 is a deficient number, since it is larger than the sum of its proper divisors (835547).

38166493 is an equidigital number, since it uses as much as digits as its factorization.

38166493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607.

The product of its digits is 93312, while the sum is 40.

The square root of 38166493 is about 6177.9036088304. The cubic root of 38166493 is about 336.6878300369.

The spelling of 38166493 in words is "thirty-eight million, one hundred sixty-six thousand, four hundred ninety-three".