1803354849 has 12 divisors (see below), whose sum is σ = 2758072356. Its totient is φ = 1131516672.

The previous prime is 1803354841. The next prime is 1803354851. The reversal of 1803354849 is 9484533081.

1803354849 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 788486400 + 1014868449 = 28080^2 + 31857^2 .

It is not a de Polignac number, because 1803354849 - 2³ = 1803354841 is a prime.

It is a super-2 number, since 2×1803354849² = 6504177422823625602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1803354841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5893164 + ... + 5893469.

It is an arithmetic number, because the mean of its divisors is an integer number (229839363).

Almost surely, 2^1803354849 is an apocalyptic number.

It is an amenable number.

1803354849 is a deficient number, since it is larger than the sum of its proper divisors (954717507).

1803354849 is a wasteful number, since it uses less digits than its factorization.

1803354849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786656 (or 11786653 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 1803354849 is about 42465.9257405275. The cubic root of 1803354849 is about 1217.1956659848.

The spelling of 1803354849 in words is "one billion, eight hundred three million, three hundred fifty-four thousand, eight hundred forty-nine".