1806677445 has 32 divisors (see below), whose sum is σ = 2938285440. Its totient is φ = 947738880.

The previous prime is 1806677441. The next prime is 1806677447. The reversal of 1806677445 is 5447766081.

It is not a de Polignac number, because 1806677445 - 2² = 1806677441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1806677394 and 1806677403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806677441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1113735 + ... + 1115355.

It is an arithmetic number, because the mean of its divisors is an integer number (91821420).

Almost surely, 2^1806677445 is an apocalyptic number.

1806677445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1806677445 is a deficient number, since it is larger than the sum of its proper divisors (1131607995).

1806677445 is a wasteful number, since it uses less digits than its factorization.

1806677445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 1806677445 is about 42505.0284672296. The cubic root of 1806677445 is about 1217.9427491620.

The spelling of 1806677445 in words is "one billion, eight hundred six million, six hundred seventy-seven thousand, four hundred forty-five".