1448163440 has 40 divisors (see below), whose sum is σ = 3401709360. Its totient is φ = 573290496.

The previous prime is 1448163439. The next prime is 1448163449. The reversal of 1448163440 is 443618441.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1448163440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1448163449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85550 + ... + 101069.

It is an arithmetic number, because the mean of its divisors is an integer number (85042734).

Almost surely, 2^1448163440 is an apocalyptic number.

1448163440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1448163440 is an abundant number, since it is smaller than the sum of its proper divisors (1953545920).

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

1448163440 is a wasteful number, since it uses less digits than its factorization.

1448163440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186729 (or 186723 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 1448163440 is about 38054.7426742055. The cubic root of 1448163440 is about 1131.3731290944.

The spelling of 1448163440 in words is "one billion, four hundred forty-eight million, one hundred sixty-three thousand, four hundred forty".