441686645 has 16 divisors (see below), whose sum is σ = 544320000. Its totient is φ = 343862400.

The previous prime is 441686629. The next prime is 441686657. The reversal of 441686645 is 546686144.

It is not a de Polignac number, because 441686645 - 2⁴ = 441686629 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 441686596 and 441686605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85856 + ... + 90854.

It is an arithmetic number, because the mean of its divisors is an integer number (34020000).

Almost surely, 2^441686645 is an apocalyptic number.

It is an amenable number.

441686645 is a deficient number, since it is larger than the sum of its proper divisors (102633355).

441686645 is a wasteful number, since it uses less digits than its factorization.

441686645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476.

The product of its digits is 552960, while the sum is 44.

The square root of 441686645 is about 21016.3423316237. The cubic root of 441686645 is about 761.5611061381.

The spelling of 441686645 in words is "four hundred forty-one million, six hundred eighty-six thousand, six hundred forty-five".