1485663872 has 128 divisors (see below), whose sum is σ = 3709601280. Its totient is φ = 575769600.

The previous prime is 1485663869. The next prime is 1485663887. The reversal of 1485663872 is 2783665841.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 1485663872.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3025547 + ... + 3026037.

It is an arithmetic number, because the mean of its divisors is an integer number (28981260).

Almost surely, 2^1485663872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1485663872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1854800640).

1485663872 is an abundant number, since it is smaller than the sum of its proper divisors (2223937408).

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

1485663872 is a wasteful number, since it uses less digits than its factorization.

1485663872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 818 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 1485663872 is about 38544.3105010324. The cubic root of 1485663872 is about 1141.0557245940.

The spelling of 1485663872 in words is "one billion, four hundred eighty-five million, six hundred sixty-three thousand, eight hundred seventy-two".