449348981 has 8 divisors (see below), whose sum is σ = 476025984. Its totient is φ = 422699200.

The previous prime is 449348951. The next prime is 449349023. The reversal of 449348981 is 189843944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449348981 is a prime.

It is a super-2 number, since 2×449348981² = 403829013451476722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449348941) 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, 34346 + ... + 45588.

It is an arithmetic number, because the mean of its divisors is an integer number (59503248).

Almost surely, 2^449348981 is an apocalyptic number.

It is an amenable number.

449348981 is a deficient number, since it is larger than the sum of its proper divisors (26677003).

449348981 is a wasteful number, since it uses less digits than its factorization.

449348981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13611.

The product of its digits is 995328, while the sum is 50.

The square root of 449348981 is about 21197.8532167765. The cubic root of 449348981 is about 765.9397118210.

The spelling of 449348981 in words is "four hundred forty-nine million, three hundred forty-eight thousand, nine hundred eighty-one".