861466268 has 24 divisors (see below), whose sum is σ = 1628783520. Its totient is φ = 396313920.

The previous prime is 861466267. The next prime is 861466271. The reversal of 861466268 is 862664168.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861466267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10463 + ... + 42806.

It is an arithmetic number, because the mean of its divisors is an integer number (67865980).

Almost surely, 2^861466268 is an apocalyptic number.

It is an amenable number.

861466268 is a deficient number, since it is larger than the sum of its proper divisors (767317252).

861466268 is a wasteful number, since it uses less digits than its factorization.

861466268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53597 (or 53595 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 861466268 is about 29350.7456123350. The cubic root of 861466268 is about 951.5086897704.

The spelling of 861466268 in words is "eight hundred sixty-one million, four hundred sixty-six thousand, two hundred sixty-eight".