478093818 has 8 divisors (see below), whose sum is σ = 956187648. Its totient is φ = 159364604.

The previous prime is 478093813. The next prime is 478093829. The reversal of 478093818 is 818390874.

It is a sphenic number, since it is the product of 3 distinct primes.

478093818 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (478093813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39841146 + ... + 39841157.

It is an arithmetic number, because the mean of its divisors is an integer number (119523456).

Almost surely, 2^478093818 is an apocalyptic number.

478093818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

478093818 is a wasteful number, since it uses less digits than its factorization.

478093818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79682308.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 478093818 is about 21865.3565715266. The cubic root of 478093818 is about 781.9357017884.

The spelling of 478093818 in words is "four hundred seventy-eight million, ninety-three thousand, eight hundred eighteen".