1445472288 has 144 divisors (see below), whose sum is σ = 4579749720. Its totient is φ = 429391872.

The previous prime is 1445472251. The next prime is 1445472289. The reversal of 1445472288 is 8822745441.

1445472288 is a `hidden beast` number, since 1 + 4 + 4 + 547 + 22 + 88 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 915183504 + 530288784 = 30252^2 + 23028^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (1445472289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101920 + ... + 115232.

Almost surely, 2^1445472288 is an apocalyptic number.

1445472288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445472288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2289874860).

1445472288 is an abundant number, since it is smaller than the sum of its proper divisors (3134277432).

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

1445472288 is a wasteful number, since it uses less digits than its factorization.

1445472288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13371 (or 13360 counting only the distinct ones).

The product of its digits is 573440, while the sum is 45.

The square root of 1445472288 is about 38019.3672751139. The cubic root of 1445472288 is about 1130.6718765211.

The spelling of 1445472288 in words is "one billion, four hundred forty-five million, four hundred seventy-two thousand, two hundred eighty-eight".