8740266646 has 16 divisors (see below), whose sum is σ = 13876677360. Its totient is φ = 4117249440.

The previous prime is 8740266631. The next prime is 8740266649. The reversal of 8740266646 is 6466620478.

It is a happy number.

It is a super-2 number, since 2×8740266646² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8740266646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8740266649) 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, 628501 + ... + 642256.

It is an arithmetic number, because the mean of its divisors is an integer number (867292335).

Almost surely, 2^8740266646 is an apocalyptic number.

8740266646 is a deficient number, since it is larger than the sum of its proper divisors (5136410714).

8740266646 is a wasteful number, since it uses less digits than its factorization.

8740266646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270959.

The product of its (nonzero) digits is 2322432, while the sum is 49.

The square root of 8740266646 is about 93489.3932272533. The cubic root of 8740266646 is about 2059.8782915809.

The spelling of 8740266646 in words is "eight billion, seven hundred forty million, two hundred sixty-six thousand, six hundred forty-six".