1838109030 has 64 divisors (see below), whose sum is σ = 4570119360. Its totient is φ = 472582656.

The previous prime is 1838109029. The next prime is 1838109043. The reversal of 1838109030 is 309018381.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1838108982 and 1838109000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949944 + ... + 951876.

It is an arithmetic number, because the mean of its divisors is an integer number (71408115).

Almost surely, 2^1838109030 is an apocalyptic number.

1838109030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1838109030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2285059680).

1838109030 is an abundant number, since it is smaller than the sum of its proper divisors (2732010330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1838109030 is a wasteful number, since it uses less digits than its factorization.

1838109030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1838109030 is about 42873.1737803489. The cubic root of 1838109030 is about 1224.9652146168.

The spelling of 1838109030 in words is "one billion, eight hundred thirty-eight million, one hundred nine thousand, thirty".