1445663634 has 16 divisors (see below), whose sum is σ = 2891861760. Its totient is φ = 481798800.

The previous prime is 1445663599. The next prime is 1445663677. The reversal of 1445663634 is 4363665441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18687 + ... + 56925.

It is an arithmetic number, because the mean of its divisors is an integer number (180741360).

Almost surely, 2^1445663634 is an apocalyptic number.

1445663634 is an abundant number, since it is smaller than the sum of its proper divisors (1446198126).

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

1445663634 is a wasteful number, since it uses less digits than its factorization.

1445663634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44545.

The product of its digits is 622080, while the sum is 42.

The square root of 1445663634 is about 38021.8836198314. The cubic root of 1445663634 is about 1130.7217656351.

The spelling of 1445663634 in words is "one billion, four hundred forty-five million, six hundred sixty-three thousand, six hundred thirty-four".