449479893 has 8 divisors (see below), whose sum is σ = 601639488. Its totient is φ = 298486784.

The previous prime is 449479889. The next prime is 449479897. The reversal of 449479893 is 398974944.

It is an interprime number because it is at equal distance from previous prime (449479889) and next prime (449479897).

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 449479893 - 2² = 449479889 is a prime.

It is a super-2 number, since 2×449479893² = 404064348422582898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449479897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290721 + ... + 292262.

It is an arithmetic number, because the mean of its divisors is an integer number (75204936).

Almost surely, 2^449479893 is an apocalyptic number.

It is an amenable number.

449479893 is a deficient number, since it is larger than the sum of its proper divisors (152159595).

449479893 is a wasteful number, since it uses less digits than its factorization.

449479893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583243.

The product of its digits is 7838208, while the sum is 57.

The square root of 449479893 is about 21200.9408517641. The cubic root of 449479893 is about 766.0140868004.

The spelling of 449479893 in words is "four hundred forty-nine million, four hundred seventy-nine thousand, eight hundred ninety-three".