1806630836 has 12 divisors (see below), whose sum is σ = 3162156480. Its totient is φ = 903157560.

The previous prime is 1806630821. The next prime is 1806630899. The reversal of 1806630836 is 6380366081.

It is a super-3 number, since 3×1806630836³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1806630793 and 1806630802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11516 + ... + 61203.

It is an arithmetic number, because the mean of its divisors is an integer number (263513040).

Almost surely, 2^1806630836 is an apocalyptic number.

It is an amenable number.

1806630836 is a deficient number, since it is larger than the sum of its proper divisors (1355525644).

1806630836 is a wasteful number, since it uses less digits than its factorization.

1806630836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78934 (or 78932 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 1806630836 is about 42504.4801873873. The cubic root of 1806630836 is about 1217.9322755010.

The spelling of 1806630836 in words is "one billion, eight hundred six million, six hundred thirty thousand, eight hundred thirty-six".