478981420 has 12 divisors (see below), whose sum is σ = 1005861024. Its totient is φ = 191592560.

The previous prime is 478981387. The next prime is 478981421. The reversal of 478981420 is 24189874.

It is not an unprimeable number, because it can be changed into a prime (478981421) 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, 11974516 + ... + 11974555.

It is an arithmetic number, because the mean of its divisors is an integer number (83821752).

Almost surely, 2^478981420 is an apocalyptic number.

It is an amenable number.

478981420 is an abundant number, since it is smaller than the sum of its proper divisors (526879604).

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

478981420 is a wasteful number, since it uses less digits than its factorization.

478981420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23949080 (or 23949078 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 478981420 is about 21885.6441531886. The cubic root of 478981420 is about 782.4193018680.

The spelling of 478981420 in words is "four hundred seventy-eight million, nine hundred eighty-one thousand, four hundred twenty".