478815996 has 12 divisors (see below), whose sum is σ = 1117237352. Its totient is φ = 159605328.

The previous prime is 478815991. The next prime is 478816007. The reversal of 478815996 is 699518874.

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 (478815991) 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, 19950655 + ... + 19950678.

Almost surely, 2^478815996 is an apocalyptic number.

It is an amenable number.

478815996 is an abundant number, since it is smaller than the sum of its proper divisors (638421356).

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

478815996 is a wasteful number, since it uses less digits than its factorization.

478815996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39901340 (or 39901338 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The square root of 478815996 is about 21881.8645457831. The cubic root of 478815996 is about 782.3292177656.

The spelling of 478815996 in words is "four hundred seventy-eight million, eight hundred fifteen thousand, nine hundred ninety-six".