478374820 has 96 divisors (see below), whose sum is σ = 1276321536. Its totient is φ = 146265600.

The previous prime is 478374811. The next prime is 478374821. The reversal of 478374820 is 28473874.

It is not an unprimeable number, because it can be changed into a prime (478374821) 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, 78690 + ... + 84550.

It is an arithmetic number, because the mean of its divisors is an integer number (13295016).

Almost surely, 2^478374820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478374820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638160768).

478374820 is an abundant number, since it is smaller than the sum of its proper divisors (797946716).

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

478374820 is a wasteful number, since it uses less digits than its factorization.

478374820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 478374820 is about 21871.7813632086. The cubic root of 478374820 is about 782.0888673064.

The spelling of 478374820 in words is "four hundred seventy-eight million, three hundred seventy-four thousand, eight hundred twenty".