1445402244 has 72 divisors (see below), whose sum is σ = 3984053472. Its totient is φ = 404302080.

The previous prime is 1445402207. The next prime is 1445402261. The reversal of 1445402244 is 4422045441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10089 + ... + 54704.

It is an arithmetic number, because the mean of its divisors is an integer number (55334076).

Almost surely, 2^1445402244 is an apocalyptic number.

It is an amenable number.

1445402244 is an abundant number, since it is smaller than the sum of its proper divisors (2538651228).

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

1445402244 is a wasteful number, since it uses less digits than its factorization.

1445402244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64837 (or 64822 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 1445402244 is about 38018.4461018596. The cubic root of 1445402244 is about 1130.6536130417.

Adding to 1445402244 its reverse (4422045441), we get a palindrome (5867447685).

The spelling of 1445402244 in words is "one billion, four hundred forty-five million, four hundred two thousand, two hundred forty-four".