1445738812 has 12 divisors (see below), whose sum is σ = 2891477680. Its totient is φ = 619602336.

The previous prime is 1445738809. The next prime is 1445738813. The reversal of 1445738812 is 2188375441.

1445738812 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445738813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25816737 + ... + 25816792.

Almost surely, 2^1445738812 is an apocalyptic number.

It is an amenable number.

1445738812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1445738812 is a wasteful number, since it uses less digits than its factorization.

1445738812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51633540 (or 51633538 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 1445738812 is about 38022.8722218614. The cubic root of 1445738812 is about 1130.7413653828.

The spelling of 1445738812 in words is "one billion, four hundred forty-five million, seven hundred thirty-eight thousand, eight hundred twelve".