478487142 has 64 divisors (see below), whose sum is σ = 1221504000. Its totient is φ = 136002240.

The previous prime is 478487137. The next prime is 478487161. The reversal of 478487142 is 241784874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72042 + ... + 78402.

It is an arithmetic number, because the mean of its divisors is an integer number (19086000).

Almost surely, 2^478487142 is an apocalyptic number.

478487142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 478487142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610752000).

478487142 is an abundant number, since it is smaller than the sum of its proper divisors (743016858).

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

478487142 is a wasteful number, since it uses less digits than its factorization.

478487142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6578 (or 6572 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 478487142 is about 21874.3489503116. The cubic root of 478487142 is about 782.1500737827.

The spelling of 478487142 in words is "four hundred seventy-eight million, four hundred eighty-seven thousand, one hundred forty-two".