38118685 has 32 divisors (see below), whose sum is σ = 52346880. Its totient is φ = 26395200.

The previous prime is 38118679. The next prime is 38118697. The reversal of 38118685 is 58681183.

It is not a de Polignac number, because 38118685 - 2¹⁷ = 37987613 is a prime.

It is a super-2 number, since 2×38118685² = 2906068292258450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134554 + ... + 134836.

It is an arithmetic number, because the mean of its divisors is an integer number (1635840).

Almost surely, 2^38118685 is an apocalyptic number.

It is an amenable number.

38118685 is a deficient number, since it is larger than the sum of its proper divisors (14228195).

38118685 is a wasteful number, since it uses less digits than its factorization.

38118685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 46080, while the sum is 40.

The square root of 38118685 is about 6174.0331226841. The cubic root of 38118685 is about 336.5471909924.

The spelling of 38118685 in words is "thirty-eight million, one hundred eighteen thousand, six hundred eighty-five".