1856341116 has 72 divisors (see below), whose sum is σ = 5645028480. Its totient is φ = 502466976.

The previous prime is 1856341049. The next prime is 1856341141. The reversal of 1856341116 is 6111436581.

It is a happy number.

1856341116 is a `hidden beast` number, since 1 + 8 + 5 + 634 + 1 + 1 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189066 + ... + 198641.

Almost surely, 2^1856341116 is an apocalyptic number.

It is an amenable number.

1856341116 is an abundant number, since it is smaller than the sum of its proper divisors (3788687364).

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

1856341116 is a wasteful number, since it uses less digits than its factorization.

1856341116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387743 (or 387738 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1856341116 is about 43085.2772533728. The cubic root of 1856341116 is about 1229.0020141987.

Adding to 1856341116 its reverse (6111436581), we get a palindrome (7967777697).

The spelling of 1856341116 in words is "one billion, eight hundred fifty-six million, three hundred forty-one thousand, one hundred sixteen".