478780 has 24 divisors (see below), whose sum is σ = 1034208. Its totient is φ = 186048.

The previous prime is 478769. The next prime is 478787. The reversal of 478780 is 87874.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478787) 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 7 ways as a sum of consecutive naturals, for example, 417 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2⁴⁷⁸⁷⁸⁰ 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 478780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517104).

478780 is an abundant number, since it is smaller than the sum of its proper divisors (555428).

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

478780 is a wasteful number, since it uses less digits than its factorization.

478780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 478780 is about 691.9393036965. The cubic root of 478780 is about 78.2309612859.

The spelling of 478780 in words is "four hundred seventy-eight thousand, seven hundred eighty".