449888445 has 16 divisors (see below), whose sum is σ = 799801920. Its totient is φ = 239940432.

The previous prime is 449888443. The next prime is 449888471. The reversal of 449888445 is 544888944.

It is a happy number.

449888445 is a `hidden beast` number, since 449 + 88 + 84 + 45 = 666.

It is not a de Polignac number, because 449888445 - 2¹ = 449888443 is a prime.

It is a super-2 number, since 2×449888445² = 404799225889036050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 449888391 and 449888400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449888443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1666119 + ... + 1666388.

It is an arithmetic number, because the mean of its divisors is an integer number (49987620).

Almost surely, 2^449888445 is an apocalyptic number.

449888445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

449888445 is a deficient number, since it is larger than the sum of its proper divisors (349913475).

449888445 is a wasteful number, since it uses less digits than its factorization.

449888445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332521 (or 3332515 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 54.

The square root of 449888445 is about 21210.5738960548. The cubic root of 449888445 is about 766.2461044575.

The spelling of 449888445 in words is "four hundred forty-nine million, eight hundred eighty-eight thousand, four hundred forty-five".