1445745892 has 24 divisors (see below), whose sum is σ = 2681096544. Its totient is φ = 679788672.

The previous prime is 1445745883. The next prime is 1445745893. The reversal of 1445745892 is 2985475441.

It is not an unprimeable number, because it can be changed into a prime (1445745893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80743 + ... + 97009.

It is an arithmetic number, because the mean of its divisors is an integer number (111712356).

Almost surely, 2^1445745892 is an apocalyptic number.

It is an amenable number.

1445745892 is a deficient number, since it is larger than the sum of its proper divisors (1235350652).

1445745892 is a wasteful number, since it uses less digits than its factorization.

1445745892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17595 (or 17593 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The square root of 1445745892 is about 38022.9653236041. The cubic root of 1445745892 is about 1130.7432111832.

The spelling of 1445745892 in words is "one billion, four hundred forty-five million, seven hundred forty-five thousand, eight hundred ninety-two".