449901243 has 32 divisors (see below), whose sum is σ = 769893120. Its totient is φ = 256625280.

The previous prime is 449901239. The next prime is 449901269. The reversal of 449901243 is 342109944.

449901243 is a `hidden beast` number, since 449 + 90 + 124 + 3 = 666.

It is not a de Polignac number, because 449901243 - 2² = 449901239 is a prime.

It is a super-2 number, since 2×449901243² = 404822256905890098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 449901198 and 449901207.

It is not an unprimeable number, because it can be changed into a prime (449901223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39505 + ... + 49602.

It is an arithmetic number, because the mean of its divisors is an integer number (24059160).

Almost surely, 2^449901243 is an apocalyptic number.

449901243 is a deficient number, since it is larger than the sum of its proper divisors (319991877).

449901243 is a wasteful number, since it uses less digits than its factorization.

449901243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89144 (or 89138 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 449901243 is about 21210.8755830588. The cubic root of 449901243 is about 766.2533702029.

The spelling of 449901243 in words is "four hundred forty-nine million, nine hundred one thousand, two hundred forty-three".