8440785974 has 16 divisors (see below), whose sum is σ = 13412709648. Its totient is φ = 3970132992.

The previous prime is 8440785953. The next prime is 8440785979. The reversal of 8440785974 is 4795870448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440785979) 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, 7037 + ... + 130119.

It is an arithmetic number, because the mean of its divisors is an integer number (838294353).

Almost surely, 2^8440785974 is an apocalyptic number.

8440785974 is a deficient number, since it is larger than the sum of its proper divisors (4971923674).

8440785974 is a wasteful number, since it uses less digits than its factorization.

8440785974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125119.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The square root of 8440785974 is about 91873.7501901386. The cubic root of 8440785974 is about 2036.0774597963.

The spelling of 8440785974 in words is "eight billion, four hundred forty million, seven hundred eighty-five thousand, nine hundred seventy-four".