1817340852 has 12 divisors (see below), whose sum is σ = 4240462016. Its totient is φ = 605780280.

The previous prime is 1817340829. The next prime is 1817340893. The reversal of 1817340852 is 2580437181.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1817340852.

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, 75722524 + ... + 75722547.

Almost surely, 2^1817340852 is an apocalyptic number.

1817340852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1817340852 is an abundant number, since it is smaller than the sum of its proper divisors (2423121164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1817340852 is a wasteful number, since it uses less digits than its factorization.

1817340852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151445078 (or 151445076 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1817340852 is about 42630.2809279976. The cubic root of 1817340852 is about 1220.3342387986.

The spelling of 1817340852 in words is "one billion, eight hundred seventeen million, three hundred forty thousand, eight hundred fifty-two".