445893378 has 32 divisors (see below), whose sum is σ = 1019955840. Its totient is φ = 127301760.

The previous prime is 445893361. The next prime is 445893389. The reversal of 445893378 is 873398544.

It is a self number, because there is not a number n which added to its sum of digits gives 445893378.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 66918 + ... + 73278.

It is an arithmetic number, because the mean of its divisors is an integer number (31873620).

Almost surely, 2^445893378 is an apocalyptic number.

445893378 is an abundant number, since it is smaller than the sum of its proper divisors (574062462).

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

445893378 is a wasteful number, since it uses less digits than its factorization.

445893378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042.

The product of its digits is 2903040, while the sum is 51.

The square root of 445893378 is about 21116.1875820424. The cubic root of 445893378 is about 763.9712362278.

The spelling of 445893378 in words is "four hundred forty-five million, eight hundred ninety-three thousand, three hundred seventy-eight".