40448470986 has 192 divisors, whose sum is σ = 118278005760. Its totient is φ = 9952774560.

The previous prime is 40448470973. The next prime is 40448470987. The reversal of 40448470986 is 68907484404.

40448470986 is a `hidden beast` number, since 4 + 0 + 4 + 484 + 70 + 98 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40448470987) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1487565 + ... + 1514511.

It is an arithmetic number, because the mean of its divisors is an integer number (616031280).

Almost surely, 2^40448470986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40448470986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59139002880).

40448470986 is an abundant number, since it is smaller than the sum of its proper divisors (77829534774).

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

40448470986 is a wasteful number, since it uses less digits than its factorization.

40448470986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27014 (or 26989 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 40448470986 in words is "forty billion, four hundred forty-eight million, four hundred seventy thousand, nine hundred eighty-six".