38105686 has 4 divisors (see below), whose sum is σ = 57158532. Its totient is φ = 19052842.

The previous prime is 38105677. The next prime is 38105689. The reversal of 38105686 is 68650183.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38105689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9526420 + ... + 9526423.

It is an arithmetic number, because the mean of its divisors is an integer number (14289633).

Almost surely, 2^38105686 is an apocalyptic number.

38105686 is a deficient number, since it is larger than the sum of its proper divisors (19052846).

38105686 is a wasteful number, since it uses less digits than its factorization.

38105686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19052845.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 38105686 is about 6172.9803174804. The cubic root of 38105686 is about 336.5089308905.

The spelling of 38105686 in words is "thirty-eight million, one hundred five thousand, six hundred eighty-six".