1445627864 has 8 divisors (see below), whose sum is σ = 2710552260. Its totient is φ = 722813928.

The previous prime is 1445627819. The next prime is 1445627881. The reversal of 1445627864 is 4687265441.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90351734 + ... + 90351749.

Almost surely, 2^1445627864 is an apocalyptic number.

It is an amenable number.

1445627864 is a deficient number, since it is larger than the sum of its proper divisors (1264924396).

1445627864 is a wasteful number, since it uses less digits than its factorization.

1445627864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180703489 (or 180703485 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 47.

The square root of 1445627864 is about 38021.4132299156. The cubic root of 1445627864 is about 1130.7124397564.

The spelling of 1445627864 in words is "one billion, four hundred forty-five million, six hundred twenty-seven thousand, eight hundred sixty-four".