1682231805 has 12 divisors (see below), whose sum is σ = 2915868540. Its totient is φ = 897190272.

The previous prime is 1682231773. The next prime is 1682231813. The reversal of 1682231805 is 5081322861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 229249881 + 1452981924 = 15141^2 + 38118^2 .

It is not a de Polignac number, because 1682231805 - 2⁵ = 1682231773 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1682231805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18691420 + ... + 18691509.

It is an arithmetic number, because the mean of its divisors is an integer number (242989045).

Almost surely, 2^1682231805 is an apocalyptic number.

1682231805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1682231805 is a deficient number, since it is larger than the sum of its proper divisors (1233636735).

1682231805 is a wasteful number, since it uses less digits than its factorization.

1682231805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37382940 (or 37382937 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1682231805 is about 41015.0192612414. The cubic root of 1682231805 is about 1189.3105732820.

The spelling of 1682231805 in words is "one billion, six hundred eighty-two million, two hundred thirty-one thousand, eight hundred five".