478343388 has 12 divisors (see below), whose sum is σ = 1116134600. Its totient is φ = 159447792.

The previous prime is 478343381. The next prime is 478343413. The reversal of 478343388 is 883343874.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478343381) 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, 19930963 + ... + 19930986.

Almost surely, 2^478343388 is an apocalyptic number.

It is an amenable number.

478343388 is an abundant number, since it is smaller than the sum of its proper divisors (637791212).

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

478343388 is a wasteful number, since it uses less digits than its factorization.

478343388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39861956 (or 39861954 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 48.

The square root of 478343388 is about 21871.0627999647. The cubic root of 478343388 is about 782.0717376731.

It can be divided in two parts, 478343 and 388, that added together give a triangular number (478731 = T₉₇₈).

The spelling of 478343388 in words is "four hundred seventy-eight million, three hundred forty-three thousand, three hundred eighty-eight".