1445321422 has 16 divisors (see below), whose sum is σ = 2223338544. Its totient is φ = 704248000.

The previous prime is 1445321411. The next prime is 1445321447. The reversal of 1445321422 is 2241235441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67797 + ... + 86527.

It is an arithmetic number, because the mean of its divisors is an integer number (138958659).

Almost surely, 2^1445321422 is an apocalyptic number.

1445321422 is a deficient number, since it is larger than the sum of its proper divisors (778017122).

1445321422 is a wasteful number, since it uses less digits than its factorization.

1445321422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19715.

The product of its digits is 7680, while the sum is 28.

The square root of 1445321422 is about 38017.3831556040. The cubic root of 1445321422 is about 1130.6325385415.

Adding to 1445321422 its reverse (2241235441), we get a palindrome (3686556863).

The spelling of 1445321422 in words is "one billion, four hundred forty-five million, three hundred twenty-one thousand, four hundred twenty-two".