445878450 has 36 divisors (see below), whose sum is σ = 1197927978. Its totient is φ = 118900800.

The previous prime is 445878427. The next prime is 445878457. The reversal of 445878450 is 54878544.

445878450 is a `hidden beast` number, since 445 + 87 + 84 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 400760361 + 45118089 = 20019^2 + 6717^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 445878396 and 445878405.

It is not an unprimeable number, because it can be changed into a prime (445878457) 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 17 ways as a sum of consecutive naturals, for example, 494971 + ... + 495870.

Almost surely, 2^445878450 is an apocalyptic number.

445878450 is an abundant number, since it is smaller than the sum of its proper divisors (752049528).

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

445878450 is a wasteful number, since it uses less digits than its factorization.

445878450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990859 (or 990851 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 445878450 is about 21115.8341061868. The cubic root of 445878450 is about 763.9627105051.

The spelling of 445878450 in words is "four hundred forty-five million, eight hundred seventy-eight thousand, four hundred fifty".