478261784 has 64 divisors (see below), whose sum is σ = 1204035840. Its totient is φ = 171999360.

The previous prime is 478261717. The next prime is 478261789. The reversal of 478261784 is 487162874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478261789) 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 15 ways as a sum of consecutive naturals, for example, 21854 + ... + 37869.

It is an arithmetic number, because the mean of its divisors is an integer number (18813060).

Almost surely, 2^478261784 is an apocalyptic number.

478261784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

478261784 is an abundant number, since it is smaller than the sum of its proper divisors (725774056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478261784 is a wasteful number, since it uses less digits than its factorization.

478261784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59760 (or 59756 counting only the distinct ones).

The product of its digits is 602112, while the sum is 47.

The square root of 478261784 is about 21869.1971503300. The cubic root of 478261784 is about 782.0272620842.

It can be divided in two parts, 4782 and 61784, that added together give a palindrome (66566).

The spelling of 478261784 in words is "four hundred seventy-eight million, two hundred sixty-one thousand, seven hundred eighty-four".