1803106494 has 80 divisors (see below), whose sum is σ = 4776789600. Its totient is φ = 497399616.

The previous prime is 1803106463. The next prime is 1803106511. The reversal of 1803106494 is 4946013081.

1803106494 is a `hidden beast` number, since 1 + 8 + 0 + 3 + 1 + 0 + 649 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 5472 + ... + 60300.

It is an arithmetic number, because the mean of its divisors is an integer number (59709870).

Almost surely, 2^1803106494 is an apocalyptic number.

1803106494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1803106494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2388394800).

1803106494 is an abundant number, since it is smaller than the sum of its proper divisors (2973683106).

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

1803106494 is a wasteful number, since it uses less digits than its factorization.

1803106494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54879 (or 54870 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1803106494 is about 42463.0014718696. The cubic root of 1803106494 is about 1217.1397867055.

The spelling of 1803106494 in words is "one billion, eight hundred three million, one hundred six thousand, four hundred ninety-four".