1855841652 has 192 divisors, whose sum is σ = 5859786240. Its totient is φ = 495839232.

The previous prime is 1855841623. The next prime is 1855841683. The reversal of 1855841652 is 2561485581.

1855841652 is a `hidden beast` number, since 1 + 8 + 5 + 584 + 1 + 65 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1855841598 and 1855841607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2531478 + ... + 2532210.

It is an arithmetic number, because the mean of its divisors is an integer number (30519720).

Almost surely, 2^1855841652 is an apocalyptic number.

1855841652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1855841652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2929893120).

1855841652 is an abundant number, since it is smaller than the sum of its proper divisors (4003944588).

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

1855841652 is a wasteful number, since it uses less digits than its factorization.

1855841652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 959 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 1855841652 is about 43079.4806375379. The cubic root of 1855841652 is about 1228.8917799108.

The spelling of 1855841652 in words is "one billion, eight hundred fifty-five million, eight hundred forty-one thousand, six hundred fifty-two".