1445876984 has 16 divisors (see below), whose sum is σ = 2717064000. Its totient is φ = 721326592.

The previous prime is 1445876963. The next prime is 1445876987. The reversal of 1445876984 is 4896785441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445876987) 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, 197672 + ... + 204855.

It is an arithmetic number, because the mean of its divisors is an integer number (169816500).

Almost surely, 2^1445876984 is an apocalyptic number.

It is an amenable number.

1445876984 is a deficient number, since it is larger than the sum of its proper divisors (1271187016).

1445876984 is a wasteful number, since it uses less digits than its factorization.

1445876984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402982 (or 402978 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 56.

The square root of 1445876984 is about 38024.6891374538. The cubic root of 1445876984 is about 1130.7773866008. Note that the first 3 decimals are identical.

The spelling of 1445876984 in words is "one billion, four hundred forty-five million, eight hundred seventy-six thousand, nine hundred eighty-four".