1813779352 has 48 divisors (see below), whose sum is σ = 4272140880. Its totient is φ = 706664640.

The previous prime is 1813779347. The next prime is 1813779353. The reversal of 1813779352 is 2539773181.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813779353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127063 + ... + 140614.

It is an arithmetic number, because the mean of its divisors is an integer number (89002935).

Almost surely, 2^1813779352 is an apocalyptic number.

It is an amenable number.

1813779352 is an abundant number, since it is smaller than the sum of its proper divisors (2458361528).

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

1813779352 is a wasteful number, since it uses less digits than its factorization.

1813779352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267712 (or 267697 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 1813779352 is about 42588.4884916100. The cubic root of 1813779352 is about 1219.5365416902.

The spelling of 1813779352 in words is "one billion, eight hundred thirteen million, seven hundred seventy-nine thousand, three hundred fifty-two".