1445420904 has 16 divisors (see below), whose sum is σ = 3613552320. Its totient is φ = 481806960.

The previous prime is 1445420887. The next prime is 1445420917. The reversal of 1445420904 is 4090245441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30112912 + ... + 30112959.

It is an arithmetic number, because the mean of its divisors is an integer number (225847020).

Almost surely, 2^1445420904 is an apocalyptic number.

It is an amenable number.

1445420904 is an abundant number, since it is smaller than the sum of its proper divisors (2168131416).

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

1445420904 is a wasteful number, since it uses less digits than its factorization.

1445420904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60225880 (or 60225876 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1445420904 is about 38018.6915082568. The cubic root of 1445420904 is about 1130.6584785629.

The spelling of 1445420904 in words is "one billion, four hundred forty-five million, four hundred twenty thousand, nine hundred four".