441819693 has 24 divisors (see below), whose sum is σ = 744876288. Its totient is φ = 247095072.

The previous prime is 441819689. The next prime is 441819739. The reversal of 441819693 is 396918144.

It is not a de Polignac number, because 441819693 - 2² = 441819689 is a prime.

It is a super-2 number, since 2×441819693² = 390409282245228498, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441819643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71646 + ... + 77567.

It is an arithmetic number, because the mean of its divisors is an integer number (31036512).

Almost surely, 2^441819693 is an apocalyptic number.

It is an amenable number.

441819693 is a deficient number, since it is larger than the sum of its proper divisors (303056595).

441819693 is a wasteful number, since it uses less digits than its factorization.

441819693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149273 (or 149270 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 441819693 is about 21019.5074395191. The cubic root of 441819693 is about 761.6375660832.

The spelling of 441819693 in words is "four hundred forty-one million, eight hundred nineteen thousand, six hundred ninety-three".