449331139 has 4 divisors (see below), whose sum is σ = 458891424. Its totient is φ = 439770856.

The previous prime is 449331121. The next prime is 449331149. The reversal of 449331139 is 931133944.

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

It is a cyclic number.

It is not a de Polignac number, because 449331139 - 2¹⁵ = 449298371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449331098 and 449331107.

It is not an unprimeable number, because it can be changed into a prime (449331119) 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, 4780072 + ... + 4780165.

It is an arithmetic number, because the mean of its divisors is an integer number (114722856).

Almost surely, 2^449331139 is an apocalyptic number.

449331139 is a deficient number, since it is larger than the sum of its proper divisors (9560285).

449331139 is an equidigital number, since it uses as much as digits as its factorization.

449331139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560284.

The product of its digits is 34992, while the sum is 37.

The square root of 449331139 is about 21197.4323680959. The cubic root of 449331139 is about 765.9295741346.

The spelling of 449331139 in words is "four hundred forty-nine million, three hundred thirty-one thousand, one hundred thirty-nine".