478336872 has 64 divisors (see below), whose sum is σ = 1312174080. Its totient is φ = 144398592.

The previous prime is 478336861. The next prime is 478336879. The reversal of 478336872 is 278633874.

It is a super-2 number, since 2×478336872² = 457612326229488768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478336879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073 + ... + 30999.

It is an arithmetic number, because the mean of its divisors is an integer number (20502720).

Almost surely, 2^478336872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478336872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656087040).

478336872 is an abundant number, since it is smaller than the sum of its proper divisors (833837208).

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

478336872 is a wasteful number, since it uses less digits than its factorization.

478336872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29002 (or 28998 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 48.

The square root of 478336872 is about 21870.9138355031. The cubic root of 478336872 is about 782.0681865264.

The spelling of 478336872 in words is "four hundred seventy-eight million, three hundred thirty-six thousand, eight hundred seventy-two".