445415540 has 24 divisors (see below), whose sum is σ = 936079872. Its totient is φ = 178031520.

The previous prime is 445415527. The next prime is 445415567. The reversal of 445415540 is 45514544.

It is a junction number, because it is equal to n+sod(n) for n = 445415497 and 445415506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21245 + ... + 36635.

It is an arithmetic number, because the mean of its divisors is an integer number (39003328).

Almost surely, 2^445415540 is an apocalyptic number.

It is an amenable number.

445415540 is an abundant number, since it is smaller than the sum of its proper divisors (490664332).

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

445415540 is a wasteful number, since it uses less digits than its factorization.

445415540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16847 (or 16845 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 445415540 is about 21104.8700540894. The cubic root of 445415540 is about 763.6982375052.

The spelling of 445415540 in words is "four hundred forty-five million, four hundred fifteen thousand, five hundred forty".