441988985 has 8 divisors (see below), whose sum is σ = 530504640. Its totient is φ = 353512624.

The previous prime is 441988951. The next prime is 441988997. The reversal of 441988985 is 589889144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 441988985 - 2¹² = 441984889 is a prime.

It is a super-2 number, since 2×441988985² = 390708525722660450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 441988985.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28586 + ... + 41244.

It is an arithmetic number, because the mean of its divisors is an integer number (66313080).

Almost surely, 2^441988985 is an apocalyptic number.

It is an amenable number.

441988985 is a deficient number, since it is larger than the sum of its proper divisors (88515655).

441988985 is a wasteful number, since it uses less digits than its factorization.

441988985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19647.

The product of its digits is 3317760, while the sum is 56.

The square root of 441988985 is about 21023.5340749361. The cubic root of 441988985 is about 761.7348325200.

The spelling of 441988985 in words is "four hundred forty-one million, nine hundred eighty-eight thousand, nine hundred eighty-five".