1681299226 has 16 divisors (see below), whose sum is σ = 2594880288. Its totient is φ = 816555600.

The previous prime is 1681299199. The next prime is 1681299233. The reversal of 1681299226 is 6229921861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38440 + ... + 69571.

It is an arithmetic number, because the mean of its divisors is an integer number (162180018).

Almost surely, 2^1681299226 is an apocalyptic number.

1681299226 is a deficient number, since it is larger than the sum of its proper divisors (913581062).

1681299226 is a wasteful number, since it uses less digits than its factorization.

1681299226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108237.

The product of its digits is 186624, while the sum is 46.

The square root of 1681299226 is about 41003.6489351862. The cubic root of 1681299226 is about 1189.0907599205.

The spelling of 1681299226 in words is "one billion, six hundred eighty-one million, two hundred ninety-nine thousand, two hundred twenty-six".