1838494803 has 16 divisors (see below), whose sum is σ = 2489412096. Its totient is φ = 1206670080.

The previous prime is 1838494783. The next prime is 1838494829. The reversal of 1838494803 is 3084948381.

It is not a de Polignac number, because 1838494803 - 2⁵ = 1838494771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1838494843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152451 + ... + 164067.

It is an arithmetic number, because the mean of its divisors is an integer number (155588256).

Almost surely, 2^1838494803 is an apocalyptic number.

1838494803 is a deficient number, since it is larger than the sum of its proper divisors (650917293).

1838494803 is a wasteful number, since it uses less digits than its factorization.

1838494803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12434.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1838494803 is about 42877.6725464431. The cubic root of 1838494803 is about 1225.0509051177.

The spelling of 1838494803 in words is "one billion, eight hundred thirty-eight million, four hundred ninety-four thousand, eight hundred three".