8265366440 has 32 divisors (see below), whose sum is σ = 18600057000. Its totient is φ = 3305616384.

The previous prime is 8265366433. The next prime is 8265366449. The reversal of 8265366440 is 446635628.

It can be written as a sum of positive squares in 4 ways, for example, as 6615219556 + 1650146884 = 81334^2 + 40622^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8265366391 and 8265366400.

It is not an unprimeable number, because it can be changed into a prime (8265366449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320756 + ... + 345564.

Almost surely, 2^8265366440 is an apocalyptic number.

It is an amenable number.

8265366440 is an abundant number, since it is smaller than the sum of its proper divisors (10334690560).

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

8265366440 is a wasteful number, since it uses less digits than its factorization.

8265366440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33149 (or 33145 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The square root of 8265366440 is about 90914.0607386998. The cubic root of 8265366440 is about 2021.8737670117.

The spelling of 8265366440 in words is "eight billion, two hundred sixty-five million, three hundred sixty-six thousand, four hundred forty".