478322240 has 56 divisors (see below), whose sum is σ = 1242559872. Its totient is φ = 173934080.

The previous prime is 478322231. The next prime is 478322267. The reversal of 478322240 is 42223874.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 478322197 and 478322206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64424 + ... + 71463.

Almost surely, 2^478322240 is an apocalyptic number.

478322240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478322240 is an abundant number, since it is smaller than the sum of its proper divisors (764237632).

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

478322240 is a wasteful number, since it uses less digits than its factorization.

478322240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135915 (or 135905 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 478322240 is about 21870.5793247458. The cubic root of 478322240 is about 782.0602121336.

The spelling of 478322240 in words is "four hundred seventy-eight million, three hundred twenty-two thousand, two hundred forty".