445738986 has 72 divisors (see below), whose sum is σ = 1225602144. Its totient is φ = 115773840.

The previous prime is 445738933. The next prime is 445738999. The reversal of 445738986 is 689837544.

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 35 ways as a sum of consecutive naturals, for example, 13270 + ... + 32673.

It is an arithmetic number, because the mean of its divisors is an integer number (17022252).

Almost surely, 2^445738986 is an apocalyptic number.

445738986 is an abundant number, since it is smaller than the sum of its proper divisors (779863158).

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

445738986 is a wasteful number, since it uses less digits than its factorization.

445738986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45976 (or 45966 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 445738986 is about 21112.5314919836. The cubic root of 445738986 is about 763.8830502255.

The spelling of 445738986 in words is "four hundred forty-five million, seven hundred thirty-eight thousand, nine hundred eighty-six".