478400387322 has 64 divisors (see below), whose sum is σ = 1125856327680. Its totient is φ = 133606065600.

The previous prime is 478400387293. The next prime is 478400387327. The reversal of 478400387322 is 223783004874.

It is not an unprimeable number, because it can be changed into a prime (478400387327) 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, 99579 + ... + 983217.

It is an arithmetic number, because the mean of its divisors is an integer number (17591505120).

Almost surely, 2^478400387322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478400387322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562928163840).

478400387322 is an abundant number, since it is smaller than the sum of its proper divisors (647455940358).

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

478400387322 is a wasteful number, since it uses less digits than its factorization.

478400387322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884299.

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 478400387322 in words is "four hundred seventy-eight billion, four hundred million, three hundred eighty-seven thousand, three hundred twenty-two".