38317690 has 16 divisors (see below), whose sum is σ = 70440192. Its totient is φ = 15000784.

The previous prime is 38317673. The next prime is 38317691. The reversal of 38317690 is 9671383.

38317690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×38317690² = 2936490733872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38317691) 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, 40294 + ... + 41233.

It is an arithmetic number, because the mean of its divisors is an integer number (4402512).

Almost surely, 2^38317690 is an apocalyptic number.

38317690 is a deficient number, since it is larger than the sum of its proper divisors (32122502).

38317690 is a wasteful number, since it uses less digits than its factorization.

38317690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81581.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 38317690 is about 6190.1284316240. The cubic root of 38317690 is about 337.1318418003.

The spelling of 38317690 in words is "thirty-eight million, three hundred seventeen thousand, six hundred ninety".