478411949 has 4 divisors (see below), whose sum is σ = 478615260. Its totient is φ = 478208640.

The previous prime is 478411931. The next prime is 478411957. The reversal of 478411949 is 949114874.

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 230128900 + 248283049 = 15170^2 + 15757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478411949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478414949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98084 + ... + 102845.

It is an arithmetic number, because the mean of its divisors is an integer number (119653815).

Almost surely, 2^478411949 is an apocalyptic number.

It is an amenable number.

478411949 is a deficient number, since it is larger than the sum of its proper divisors (203311).

478411949 is a wasteful number, since it uses less digits than its factorization.

478411949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203310.

The product of its digits is 290304, while the sum is 47.

The square root of 478411949 is about 21872.6301344854. The cubic root of 478411949 is about 782.1091006918.

The spelling of 478411949 in words is "four hundred seventy-eight million, four hundred eleven thousand, nine hundred forty-nine".