1478168220 has 48 divisors (see below), whose sum is σ = 4149855360. Its totient is φ = 393132096.

The previous prime is 1478168191. The next prime is 1478168231. The reversal of 1478168220 is 228618741.

It is a happy number.

It is a congruent number.

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, 9762 + ... + 55241.

It is an arithmetic number, because the mean of its divisors is an integer number (86455320).

Almost surely, 2^1478168220 is an apocalyptic number.

1478168220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478168220 is an abundant number, since it is smaller than the sum of its proper divisors (2671687140).

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

1478168220 is a wasteful number, since it uses less digits than its factorization.

1478168220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65394 (or 65392 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 1478168220 is about 38446.9533253287. The cubic root of 1478168220 is about 1139.1334905053.

The spelling of 1478168220 in words is "one billion, four hundred seventy-eight million, one hundred sixty-eight thousand, two hundred twenty".