478734849 has 48 divisors (see below), whose sum is σ = 750409920. Its totient is φ = 293155200.

The previous prime is 478734847. The next prime is 478734853. The reversal of 478734849 is 948437874.

It is not a de Polignac number, because 478734849 - 2¹ = 478734847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478734795 and 478734804.

It is not an unprimeable number, because it can be changed into a prime (478734847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 915102 + ... + 915624.

It is an arithmetic number, because the mean of its divisors is an integer number (15633540).

Almost surely, 2^478734849 is an apocalyptic number.

It is an amenable number.

478734849 is a deficient number, since it is larger than the sum of its proper divisors (271675071).

478734849 is a wasteful number, since it uses less digits than its factorization.

478734849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 699 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 478734849 is about 21880.0102605095. The cubic root of 478734849 is about 782.2850203730.

The spelling of 478734849 in words is "four hundred seventy-eight million, seven hundred thirty-four thousand, eight hundred forty-nine".