1445978618 has 8 divisors (see below), whose sum is σ = 2478820512. Its totient is φ = 619705116.

The previous prime is 1445978591. The next prime is 1445978659. The reversal of 1445978618 is 8168795441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1445978618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51642080 + ... + 51642107.

It is an arithmetic number, because the mean of its divisors is an integer number (309852564).

Almost surely, 2^1445978618 is an apocalyptic number.

1445978618 is a deficient number, since it is larger than the sum of its proper divisors (1032841894).

1445978618 is a wasteful number, since it uses less digits than its factorization.

1445978618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103284196.

The product of its digits is 1935360, while the sum is 53.

The square root of 1445978618 is about 38026.0255351516. The cubic root of 1445978618 is about 1130.8038809563.

The spelling of 1445978618 in words is "one billion, four hundred forty-five million, nine hundred seventy-eight thousand, six hundred eighteen".