493448149 has 4 divisors (see below), whose sum is σ = 493513740. Its totient is φ = 493382560.

The previous prime is 493448143. The next prime is 493448209. The reversal of 493448149 is 941844394.

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

It can be written as a sum of positive squares in 2 ways, for example, as 350812900 + 142635249 = 18730^2 + 11943^2 .

It is a cyclic number.

It is not a de Polignac number, because 493448149 - 2⁵ = 493448117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 493448099 and 493448108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493448143) 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, 19792 + ... + 37129.

It is an arithmetic number, because the mean of its divisors is an integer number (123378435).

Almost surely, 2^493448149 is an apocalyptic number.

It is an amenable number.

493448149 is a deficient number, since it is larger than the sum of its proper divisors (65591).

493448149 is an equidigital number, since it uses as much as digits as its factorization.

493448149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65590.

The product of its digits is 497664, while the sum is 46.

The square root of 493448149 is about 22213.6928267229. The cubic root of 493448149 is about 790.2184670590.

The spelling of 493448149 in words is "four hundred ninety-three million, four hundred forty-eight thousand, one hundred forty-nine".