441638968 has 8 divisors (see below), whose sum is σ = 828073080. Its totient is φ = 220819480.

The previous prime is 441638947. The next prime is 441638987. The reversal of 441638968 is 869836144.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×441638968² = 390089956112210048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27602428 + ... + 27602443.

It is an arithmetic number, because the mean of its divisors is an integer number (103509135).

Almost surely, 2^441638968 is an apocalyptic number.

It is an amenable number.

441638968 is a deficient number, since it is larger than the sum of its proper divisors (386434112).

441638968 is a wasteful number, since it uses less digits than its factorization.

441638968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55204877 (or 55204873 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 441638968 is about 21015.2080170528. The cubic root of 441638968 is about 761.5337034113.

The spelling of 441638968 in words is "four hundred forty-one million, six hundred thirty-eight thousand, nine hundred sixty-eight".