478439328 has 48 divisors (see below), whose sum is σ = 1285121376. Its totient is φ = 155769600.

The previous prime is 478439327. The next prime is 478439329. The reversal of 478439328 is 823934874.

It is an interprime number because it is at equal distance from previous prime (478439327) and next prime (478439329).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (478439327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53823 + ... + 62078.

It is an arithmetic number, because the mean of its divisors is an integer number (26773362).

Almost surely, 2^478439328 is an apocalyptic number.

478439328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

478439328 is an abundant number, since it is smaller than the sum of its proper divisors (806682048).

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

478439328 is a wasteful number, since it uses less digits than its factorization.

478439328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115957 (or 115949 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 478439328 is about 21873.2559990505. The cubic root of 478439328 is about 782.1240201607.

The spelling of 478439328 in words is "four hundred seventy-eight million, four hundred thirty-nine thousand, three hundred twenty-eight".