861441030 has 48 divisors (see below), whose sum is σ = 2300289264. Its totient is φ = 223508160.

The previous prime is 861441029. The next prime is 861441041. The reversal of 861441030 is 30144168.

861441030 is a `hidden beast` number, since 8 + 614 + 4 + 10 + 30 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 861440985 and 861441003.

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, 126016 + ... + 132675.

It is an arithmetic number, because the mean of its divisors is an integer number (47922693).

Almost surely, 2^861441030 is an apocalyptic number.

861441030 is an abundant number, since it is smaller than the sum of its proper divisors (1438848234).

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

861441030 is a wasteful number, since it uses less digits than its factorization.

861441030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258741 (or 258738 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 861441030 is about 29350.3156712155. The cubic root of 861441030 is about 951.4993977018.

Adding to 861441030 its reverse (30144168), we get a palindrome (891585198).

The spelling of 861441030 in words is "eight hundred sixty-one million, four hundred forty-one thousand, thirty".