810000038 has 8 divisors (see below), whose sum is σ = 1216015320. Its totient is φ = 404661600.

The previous prime is 810000019. The next prime is 810000049. The reversal of 810000038 is 830000018.

810000038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×810000038² = 1312200123120002888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 809999974 and 810000019.

It is a congruent number.

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, 166208 + ... + 171011.

It is an arithmetic number, because the mean of its divisors is an integer number (152001915).

Almost surely, 2^810000038 is an apocalyptic number.

810000038 is a deficient number, since it is larger than the sum of its proper divisors (406015282).

810000038 is a wasteful number, since it uses less digits than its factorization.

810000038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338422.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 810000038 is about 28460.4996091074. The cubic root of 810000038 is about 932.1697663633.

Subtracting from 810000038 its sum of digits (20), we obtain a palindrome (810000018).

The spelling of 810000038 in words is "eight hundred ten million, thirty-eight", and thus it is an aban number.