478783845 has 32 divisors (see below), whose sum is σ = 861964800. Its totient is φ = 252113472.

The previous prime is 478783843. The next prime is 478783849. The reversal of 478783845 is 548387874.

It is a happy number.

It is not a de Polignac number, because 478783845 - 2¹ = 478783843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478783791 and 478783800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478783843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11782 + ... + 33111.

It is an arithmetic number, because the mean of its divisors is an integer number (26936400).

Almost surely, 2^478783845 is an apocalyptic number.

478783845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

478783845 is a deficient number, since it is larger than the sum of its proper divisors (383180955).

478783845 is a wasteful number, since it uses less digits than its factorization.

478783845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44986 (or 44980 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The square root of 478783845 is about 21881.1298839891. The cubic root of 478783845 is about 782.3117070517.

The spelling of 478783845 in words is "four hundred seventy-eight million, seven hundred eighty-three thousand, eight hundred forty-five".