1445245344 has 144 divisors (see below), whose sum is σ = 4375425600. Its totient is φ = 450938880.

The previous prime is 1445245343. The next prime is 1445245349. The reversal of 1445245344 is 4435425441.

1445245344 is a `hidden beast` number, since 1 + 44 + 524 + 53 + 44 = 666.

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

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

It is a junction number, because it is equal to n+sod(n) for n = 1445245299 and 1445245308.

It is not an unprimeable number, because it can be changed into a prime (1445245343) 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, 1032357 + ... + 1033755.

It is an arithmetic number, because the mean of its divisors is an integer number (30384900).

Almost surely, 2^1445245344 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 1445245344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2187712800).

1445245344 is an abundant number, since it is smaller than the sum of its proper divisors (2930180256).

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

1445245344 is a wasteful number, since it uses less digits than its factorization.

1445245344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1632 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 1445245344 is about 38016.3825738326. The cubic root of 1445245344 is about 1130.6127003311.

The spelling of 1445245344 in words is "one billion, four hundred forty-five million, two hundred forty-five thousand, three hundred forty-four".