478403030640 has 40 divisors (see below), whose sum is σ = 1483049395728. Its totient is φ = 127574141440.

The previous prime is 478403030593. The next prime is 478403030671. The reversal of 478403030640 is 46030304874.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996672741 + ... + 996673220.

Almost surely, 2^478403030640 is an apocalyptic number.

478403030640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478403030640 is an abundant number, since it is smaller than the sum of its proper divisors (1004646365088).

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

478403030640 is a wasteful number, since it uses less digits than its factorization.

478403030640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993345977 (or 1993345971 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 478403030640 in words is "four hundred seventy-eight billion, four hundred three million, thirty thousand, six hundred forty".