1816706445 has 16 divisors (see below), whose sum is σ = 3077714880. Its totient is φ = 911915264.

The previous prime is 1816706431. The next prime is 1816706449. The reversal of 1816706445 is 5446076181.

1816706445 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1816706445 - 2⁴ = 1816706429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1816706397 and 1816706406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816706449) 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, 3561915 + ... + 3562424.

It is an arithmetic number, because the mean of its divisors is an integer number (192357180).

Almost surely, 2^1816706445 is an apocalyptic number.

1816706445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1816706445 is a deficient number, since it is larger than the sum of its proper divisors (1261008435).

1816706445 is a wasteful number, since it uses less digits than its factorization.

1816706445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124364.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1816706445 is about 42622.8394760368. The cubic root of 1816706445 is about 1220.1922220188.

The spelling of 1816706445 in words is "one billion, eight hundred sixteen million, seven hundred six thousand, four hundred forty-five".