443768949 has 20 divisors (see below), whose sum is σ = 713909196. Its totient is φ = 273087936.

The previous prime is 443768891. The next prime is 443768951. The reversal of 443768949 is 949867344.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98366724 + 345402225 = 9918^2 + 18585^2 .

It is not a de Polignac number, because 443768949 - 2¹⁷ = 443637877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 443768895 and 443768904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443768989) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 209664 + ... + 211769.

Almost surely, 2^443768949 is an apocalyptic number.

It is an amenable number.

443768949 is a deficient number, since it is larger than the sum of its proper divisors (270140247).

443768949 is a wasteful number, since it uses less digits than its factorization.

443768949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421458 (or 421449 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 443768949 is about 21065.8241946523. The cubic root of 443768949 is about 762.7560077029.

The spelling of 443768949 in words is "four hundred forty-three million, seven hundred sixty-eight thousand, nine hundred forty-nine".