1806454013 has 24 divisors (see below), whose sum is σ = 2353233600. Its totient is φ = 1354040064.

The previous prime is 1806454003. The next prime is 1806454031. The reversal of 1806454013 is 3104546081.

It is not a de Polignac number, because 1806454013 - 2⁸ = 1806453757 is a prime.

It is a super-2 number, since 2×1806454013² = 6526552202167608338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806454003) 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 23 ways as a sum of consecutive naturals, for example, 17708 + ... + 62661.

It is an arithmetic number, because the mean of its divisors is an integer number (98051400).

Almost surely, 2^1806454013 is an apocalyptic number.

1806454013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1806454013 is a deficient number, since it is larger than the sum of its proper divisors (546779587).

1806454013 is a wasteful number, since it uses less digits than its factorization.

1806454013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80421 (or 80408 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1806454013 is about 42502.4000851717. The cubic root of 1806454013 is about 1217.8925393872.

The spelling of 1806454013 in words is "one billion, eight hundred six million, four hundred fifty-four thousand, thirteen".