1445615460 has 72 divisors (see below), whose sum is σ = 4411382976. Its totient is φ = 383181120.

The previous prime is 1445615453. The next prime is 1445615471. The reversal of 1445615460 is 645165441.

1445615460 is a `hidden beast` number, since 1 + 44 + 561 + 54 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6015 + ... + 54105.

It is an arithmetic number, because the mean of its divisors is an integer number (61269208).

Almost surely, 2^1445615460 is an apocalyptic number.

1445615460 is a gapful number since it is divisible by the number (10) 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 1445615460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2205691488).

1445615460 is an abundant number, since it is smaller than the sum of its proper divisors (2965767516).

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

1445615460 is a wasteful number, since it uses less digits than its factorization.

1445615460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48273 (or 48268 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1445615460 is about 38021.2501109577. The cubic root of 1445615460 is about 1130.7092057758.

The spelling of 1445615460 in words is "one billion, four hundred forty-five million, six hundred fifteen thousand, four hundred sixty".