478845486 has 128 divisors (see below), whose sum is σ = 1302297600. Its totient is φ = 127370880.

The previous prime is 478845481. The next prime is 478845491. The reversal of 478845486 is 684548874.

478845486 is a `hidden beast` number, since 47 + 88 + 45 + 486 = 666.

It is an interprime number because it is at equal distance from previous prime (478845481) and next prime (478845491).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478845481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 437556 + ... + 438648.

It is an arithmetic number, because the mean of its divisors is an integer number (10174200).

Almost surely, 2^478845486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478845486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651148800).

478845486 is an abundant number, since it is smaller than the sum of its proper divisors (823452114).

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

478845486 is a wasteful number, since it uses less digits than its factorization.

478845486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1185 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The square root of 478845486 is about 21882.5383810928. The cubic root of 478845486 is about 782.3452785037.

The spelling of 478845486 in words is "four hundred seventy-eight million, eight hundred forty-five thousand, four hundred eighty-six".