1040448244864 has 32 divisors (see below), whose sum is σ = 2368877702400. Its totient is φ = 445906390272.

The previous prime is 1040448244811. The next prime is 1040448244867. The reversal of 1040448244864 is 4684428440401.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1040448244867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580606384 + ... + 580608175.

It is an arithmetic number, because the mean of its divisors is an integer number (74027428200).

Almost surely, 2^{1040448244864} is an apocalyptic number.

1040448244864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1040448244864 is an abundant number, since it is smaller than the sum of its proper divisors (1328429457536).

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

1040448244864 is an equidigital number, since it uses as much as digits as its factorization.

1040448244864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161214580 (or 1161214568 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 49.

The spelling of 1040448244864 in words is "one trillion, forty billion, four hundred forty-eight million, two hundred forty-four thousand, eight hundred sixty-four".