38990858 has 8 divisors (see below), whose sum is σ = 59477760. Its totient is φ = 19164940.

The previous prime is 38990837. The next prime is 38990863. The reversal of 38990858 is 85809983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165098 + ... + 165333.

It is an arithmetic number, because the mean of its divisors is an integer number (7434720).

Almost surely, 2^38990858 is an apocalyptic number.

38990858 is a deficient number, since it is larger than the sum of its proper divisors (20486902).

38990858 is a wasteful number, since it uses less digits than its factorization.

38990858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330492.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 38990858 is about 6244.2660097084. The cubic root of 38990858 is about 339.0946444059.

The spelling of 38990858 in words is "thirty-eight million, nine hundred ninety thousand, eight hundred fifty-eight".