1445213384 has 32 divisors (see below), whose sum is σ = 2874566880. Its totient is φ = 678822144.

The previous prime is 1445213311. The next prime is 1445213389. The reversal of 1445213384 is 4833125441.

It is not an unprimeable number, because it can be changed into a prime (1445213389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64679 + ... + 84105.

It is an arithmetic number, because the mean of its divisors is an integer number (89830215).

Almost surely, 2^1445213384 is an apocalyptic number.

It is an amenable number.

1445213384 is a deficient number, since it is larger than the sum of its proper divisors (1429353496).

1445213384 is a wasteful number, since it uses less digits than its factorization.

1445213384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19997 (or 19993 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 1445213384 is about 38015.9622264122. The cubic root of 1445213384 is about 1130.6043661871.

The spelling of 1445213384 in words is "one billion, four hundred forty-five million, two hundred thirteen thousand, three hundred eighty-four".