445989468 has 12 divisors (see below), whose sum is σ = 1040642120. Its totient is φ = 148663152.

The previous prime is 445989457. The next prime is 445989469. The reversal of 445989468 is 864989544.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445989469) 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 3 ways as a sum of consecutive naturals, for example, 18582883 + ... + 18582906.

Almost surely, 2^445989468 is an apocalyptic number.

It is an amenable number.

445989468 is an abundant number, since it is smaller than the sum of its proper divisors (594652652).

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

445989468 is a wasteful number, since it uses less digits than its factorization.

445989468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37165796 (or 37165794 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 57.

The square root of 445989468 is about 21118.4627281438. The cubic root of 445989468 is about 764.0261108736.

The spelling of 445989468 in words is "four hundred forty-five million, nine hundred eighty-nine thousand, four hundred sixty-eight".