1445457322 has 8 divisors (see below), whose sum is σ = 2168388000. Its totient is φ = 722661324.

The previous prime is 1445457269. The next prime is 1445457323. The reversal of 1445457322 is 2237545441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1445457323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172 + ... + 53767.

It is an arithmetic number, because the mean of its divisors is an integer number (271048500).

Almost surely, 2^1445457322 is an apocalyptic number.

1445457322 is a deficient number, since it is larger than the sum of its proper divisors (722930678).

1445457322 is a wasteful number, since it uses less digits than its factorization.

1445457322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67340.

The product of its digits is 134400, while the sum is 37.

The square root of 1445457322 is about 38019.1704538645. The cubic root of 1445457322 is about 1130.6679742917.

The spelling of 1445457322 in words is "one billion, four hundred forty-five million, four hundred fifty-seven thousand, three hundred twenty-two".