8446897940 has 24 divisors (see below), whose sum is σ = 19102985160. Its totient is φ = 3118854528.

The previous prime is 8446897939. The next prime is 8446897969. The reversal of 8446897940 is 497986448.

It can be written as a sum of positive squares in 4 ways, for example, as 42042256 + 8404855684 = 6484^2 + 91678^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8446897940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16243775 + ... + 16244294.

It is an arithmetic number, because the mean of its divisors is an integer number (795957715).

Almost surely, 2^8446897940 is an apocalyptic number.

It is an amenable number.

8446897940 is an abundant number, since it is smaller than the sum of its proper divisors (10656087220).

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

8446897940 is a wasteful number, since it uses less digits than its factorization.

8446897940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32488091 (or 32488089 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 59.

The square root of 8446897940 is about 91907.0070234038. The cubic root of 8446897940 is about 2036.5687818835.

The spelling of 8446897940 in words is "eight billion, four hundred forty-six million, eight hundred ninety-seven thousand, nine hundred forty".