38790181 has 8 divisors (see below), whose sum is σ = 39803904. Its totient is φ = 37784400.

The previous prime is 38790131. The next prime is 38790187. The reversal of 38790181 is 18109783.

38790181 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 38790181 - 2⁷ = 38790053 is a prime.

It is a super-2 number, since 2×38790181² = 3009356284025522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38790181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38790187) 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, 8631 + ... + 12331.

It is an arithmetic number, because the mean of its divisors is an integer number (4975488).

Almost surely, 2^38790181 is an apocalyptic number.

It is an amenable number.

38790181 is a deficient number, since it is larger than the sum of its proper divisors (1013723).

38790181 is a wasteful number, since it uses less digits than its factorization.

38790181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 38790181 is about 6228.1763783631. The cubic root of 38790181 is about 338.5118960580.

The spelling of 38790181 in words is "thirty-eight million, seven hundred ninety thousand, one hundred eighty-one".