1445622746 has 16 divisors (see below), whose sum is σ = 2200478280. Its totient is φ = 712203840.

The previous prime is 1445622697. The next prime is 1445622781. The reversal of 1445622746 is 6472265441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 838739521 + 606883225 = 28961^2 + 24635^2 .

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, 21140 + ... + 57776.

Almost surely, 2^1445622746 is an apocalyptic number.

1445622746 is a deficient number, since it is larger than the sum of its proper divisors (754855534).

1445622746 is a wasteful number, since it uses less digits than its factorization.

1445622746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36929.

The product of its digits is 322560, while the sum is 41.

The square root of 1445622746 is about 38021.3459256771. The cubic root of 1445622746 is about 1130.7111053897.

The spelling of 1445622746 in words is "one billion, four hundred forty-five million, six hundred twenty-two thousand, seven hundred forty-six".