38818061 has 4 divisors (see below), whose sum is σ = 39174300. Its totient is φ = 38461824.

The previous prime is 38818027. The next prime is 38818063. The reversal of 38818061 is 16081883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19624900 + 19193161 = 4430^2 + 4381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38818061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38818063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177956 + ... + 178173.

It is an arithmetic number, because the mean of its divisors is an integer number (9793575).

Almost surely, 2^38818061 is an apocalyptic number.

It is an amenable number.

38818061 is a deficient number, since it is larger than the sum of its proper divisors (356239).

38818061 is a wasteful number, since it uses less digits than its factorization.

38818061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356238.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 38818061 is about 6230.4141916890. The cubic root of 38818061 is about 338.5929771567.

The spelling of 38818061 in words is "thirty-eight million, eight hundred eighteen thousand, sixty-one".