445669776 has 140 divisors (see below), whose sum is σ = 1363451920. Its totient is φ = 140667840.

The previous prime is 445669691. The next prime is 445669789. The reversal of 445669776 is 677966544.

445669776 is a `hidden beast` number, since 4 + 4 + 566 + 9 + 7 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 220611 + ... + 222621.

Almost surely, 2^445669776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445669776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681725960).

445669776 is an abundant number, since it is smaller than the sum of its proper divisors (917782144).

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

445669776 is a wasteful number, since it uses less digits than its factorization.

445669776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2035 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The square root of 445669776 is about 21110.8923544222. The cubic root of 445669776 is about 763.8435120772.

The spelling of 445669776 in words is "four hundred forty-five million, six hundred sixty-nine thousand, seven hundred seventy-six".