1806898412 has 12 divisors (see below), whose sum is σ = 3449533416. Its totient is φ = 821317440.

The previous prime is 1806898351. The next prime is 1806898427. The reversal of 1806898412 is 2148986081.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20532893 + ... + 20532980.

It is an arithmetic number, because the mean of its divisors is an integer number (287461118).

Almost surely, 2^1806898412 is an apocalyptic number.

It is an amenable number.

1806898412 is a deficient number, since it is larger than the sum of its proper divisors (1642635004).

1806898412 is a wasteful number, since it uses less digits than its factorization.

1806898412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41065888 (or 41065886 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 1806898412 is about 42507.6276919802. The cubic root of 1806898412 is about 1217.9924009294.

The spelling of 1806898412 in words is "one billion, eight hundred six million, eight hundred ninety-eight thousand, four hundred twelve".