1445005684 has 12 divisors (see below), whose sum is σ = 2529026500. Its totient is φ = 722426688.

The previous prime is 1445005673. The next prime is 1445005753. The reversal of 1445005684 is 4865005441.

It can be written as a sum of positive squares in 2 ways, for example, as 730512784 + 714492900 = 27028^2 + 26730^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61642 + ... + 81790.

Almost surely, 2^1445005684 is an apocalyptic number.

It is an amenable number.

1445005684 is a deficient number, since it is larger than the sum of its proper divisors (1084020816).

1445005684 is a wasteful number, since it uses less digits than its factorization.

1445005684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38082 (or 38080 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 1445005684 is about 38013.2303810134. The cubic root of 1445005684 is about 1130.5502016880.

The spelling of 1445005684 in words is "one billion, four hundred forty-five million, five thousand, six hundred eighty-four".