478222812 has 48 divisors (see below), whose sum is σ = 1241255680. Its totient is φ = 159225264.

The previous prime is 478222783. The next prime is 478222861. The reversal of 478222812 is 218222874.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119313 + ... + 123255.

Almost surely, 2^478222812 is an apocalyptic number.

It is an amenable number.

478222812 is an abundant number, since it is smaller than the sum of its proper divisors (763032868).

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

478222812 is a wasteful number, since it uses less digits than its factorization.

478222812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079 (or 5071 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 478222812 is about 21868.3061072411. The cubic root of 478222812 is about 782.0060198864.

The spelling of 478222812 in words is "four hundred seventy-eight million, two hundred twenty-two thousand, eight hundred twelve".