441621378 has 24 divisors (see below), whose sum is σ = 1043832816. Its totient is φ = 133824600.

The previous prime is 441621361. The next prime is 441621451. The reversal of 441621378 is 873126144.

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 11 ways as a sum of consecutive naturals, for example, 1115008 + ... + 1115403.

It is an arithmetic number, because the mean of its divisors is an integer number (43493034).

Almost surely, 2^441621378 is an apocalyptic number.

441621378 is an abundant number, since it is smaller than the sum of its proper divisors (602211438).

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

441621378 is a wasteful number, since it uses less digits than its factorization.

441621378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230430 (or 2230427 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 441621378 is about 21014.7895064405. The cubic root of 441621378 is about 761.5235929239.

The spelling of 441621378 in words is "four hundred forty-one million, six hundred twenty-one thousand, three hundred seventy-eight".