478353816 has 128 divisors (see below), whose sum is σ = 1406592000. Its totient is φ = 150315264.

The previous prime is 478353809. The next prime is 478353857. The reversal of 478353816 is 618353874.

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, 362005 + ... + 363323.

It is an arithmetic number, because the mean of its divisors is an integer number (10989000).

Almost surely, 2^478353816 is an apocalyptic number.

478353816 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478353816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703296000).

478353816 is an abundant number, since it is smaller than the sum of its proper divisors (928238184).

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

478353816 is a wasteful number, since it uses less digits than its factorization.

478353816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1420 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 478353816 is about 21871.3011958594. The cubic root of 478353816 is about 782.0774207486.

The spelling of 478353816 in words is "four hundred seventy-eight million, three hundred fifty-three thousand, eight hundred sixteen".