1838903081 has 8 divisors (see below), whose sum is σ = 1851379200. Its totient is φ = 1826459712.

The previous prime is 1838903051. The next prime is 1838903111. The reversal of 1838903081 is 1803098381.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1838903051) and next prime (1838903111).

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

It is a cyclic number.

It is not a de Polignac number, because 1838903081 - 2¹⁴ = 1838886697 is a prime.

It is a super-2 number, since 2×1838903081² = 6763129082622585122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1838903051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110216 + ... + 125798.

It is an arithmetic number, because the mean of its divisors is an integer number (231422400).

Almost surely, 2^1838903081 is an apocalyptic number.

It is an amenable number.

1838903081 is a deficient number, since it is larger than the sum of its proper divisors (12476119).

1838903081 is a wasteful number, since it uses less digits than its factorization.

1838903081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16375.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 1838903081 is about 42882.4332448615. The cubic root of 1838903081 is about 1225.1415815256.

The spelling of 1838903081 in words is "one billion, eight hundred thirty-eight million, nine hundred three thousand, eighty-one".