38813818 has 8 divisors (see below), whose sum is σ = 58292640. Its totient is φ = 19382940.

The previous prime is 38813791. The next prime is 38813833. The reversal of 38813818 is 81831883.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9888 + ... + 13243.

It is an arithmetic number, because the mean of its divisors is an integer number (7286580).

Almost surely, 2^38813818 is an apocalyptic number.

38813818 is a deficient number, since it is larger than the sum of its proper divisors (19478822).

38813818 is a wasteful number, since it uses less digits than its factorization.

38813818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23972.

The product of its digits is 36864, while the sum is 40.

The square root of 38813818 is about 6230.0736753268. The cubic root of 38813818 is about 338.5806400958.

The spelling of 38813818 in words is "thirty-eight million, eight hundred thirteen thousand, eight hundred eighteen".