478888140 has 48 divisors (see below), whose sum is σ = 1341865728. Its totient is φ = 127610304.

The previous prime is 478888133. The next prime is 478888169. The reversal of 478888140 is 41888874.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 478888140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130369 + ... + 133991.

It is an arithmetic number, because the mean of its divisors is an integer number (27955536).

Almost surely, 2^478888140 is an apocalyptic number.

It is an amenable number.

478888140 is an abundant number, since it is smaller than the sum of its proper divisors (862977588).

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

478888140 is a wasteful number, since it uses less digits than its factorization.

478888140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838 (or 5836 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 48.

The square root of 478888140 is about 21883.5129720984. The cubic root of 478888140 is about 782.3685074058.

The spelling of 478888140 in words is "four hundred seventy-eight million, eight hundred eighty-eight thousand, one hundred forty".