445389030 has 40 divisors (see below), whose sum is σ = 1197603792. Its totient is φ = 118770192.

The previous prime is 445388981. The next prime is 445389031. The reversal of 445389030 is 30983544.

445389030 is a `hidden beast` number, since 4 + 4 + 538 + 90 + 30 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445389031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 274122 + ... + 275741.

Almost surely, 2^445389030 is an apocalyptic number.

445389030 is an abundant number, since it is smaller than the sum of its proper divisors (752214762).

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

445389030 is a wasteful number, since it uses less digits than its factorization.

445389030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549882 (or 549873 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 445389030 is about 21104.2419906520. The cubic root of 445389030 is about 763.6830860791.

The spelling of 445389030 in words is "four hundred forty-five million, three hundred eighty-nine thousand, thirty".