445117986 has 12 divisors (see below), whose sum is σ = 964422342. Its totient is φ = 148372656.

The previous prime is 445117973. The next prime is 445117993. The reversal of 445117986 is 689711544.

445117986 is a `hidden beast` number, since 44 + 511 + 7 + 98 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 444155625 + 962361 = 21075^2 + 981^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12364371 + ... + 12364406.

Almost surely, 2^445117986 is an apocalyptic number.

445117986 is an abundant number, since it is smaller than the sum of its proper divisors (519304356).

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

445117986 is a wasteful number, since it uses less digits than its factorization.

445117986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24728785 (or 24728782 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 445117986 is about 21097.8194607879. The cubic root of 445117986 is about 763.5281400976.

The spelling of 445117986 in words is "four hundred forty-five million, one hundred seventeen thousand, nine hundred eighty-six".