449085531 has 4 divisors (see below), whose sum is σ = 598780712. Its totient is φ = 299390352.

The previous prime is 449085467. The next prime is 449085569. The reversal of 449085531 is 135580944.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 449085531 - 2⁶ = 449085467 is a prime.

It is a super-2 number, since 2×449085531² = 403355628307103922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449085531.

It is not an unprimeable number, because it can be changed into a prime (449085031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74847586 + ... + 74847591.

It is an arithmetic number, because the mean of its divisors is an integer number (149695178).

Almost surely, 2^449085531 is an apocalyptic number.

449085531 is a deficient number, since it is larger than the sum of its proper divisors (149695181).

449085531 is a wasteful number, since it uses less digits than its factorization.

449085531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149695180.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 449085531 is about 21191.6382330390. The cubic root of 449085531 is about 765.7899942861.

The spelling of 449085531 in words is "four hundred forty-nine million, eighty-five thousand, five hundred thirty-one".