1445221026 has 12 divisors (see below), whose sum is σ = 3131312262. Its totient is φ = 481740336.

The previous prime is 1445220979. The next prime is 1445221033. The reversal of 1445221026 is 6201225441.

1445221026 is a `hidden beast` number, since 1 + 445 + 2 + 210 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1323140625 + 122080401 = 36375^2 + 11049^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40145011 + ... + 40145046.

Almost surely, 2^1445221026 is an apocalyptic number.

1445221026 is an abundant number, since it is smaller than the sum of its proper divisors (1686091236).

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

1445221026 is a wasteful number, since it uses less digits than its factorization.

1445221026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80290065 (or 80290062 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1445221026 is about 38016.0627366907. The cubic root of 1445221026 is about 1130.6063589870.

Adding to 1445221026 its reverse (6201225441), we get a palindrome (7646446467).

The spelling of 1445221026 in words is "one billion, four hundred forty-five million, two hundred twenty-one thousand, twenty-six".