478277620 has 12 divisors (see below), whose sum is σ = 1004383044. Its totient is φ = 191311040.

The previous prime is 478277581. The next prime is 478277629. The reversal of 478277620 is 26772874.

It can be written as a sum of positive squares in 2 ways, for example, as 253637476 + 224640144 = 15926^2 + 14988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478277629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11956921 + ... + 11956960.

It is an arithmetic number, because the mean of its divisors is an integer number (83698587).

Almost surely, 2^478277620 is an apocalyptic number.

It is an amenable number.

478277620 is an abundant number, since it is smaller than the sum of its proper divisors (526105424).

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

478277620 is a wasteful number, since it uses less digits than its factorization.

478277620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23913890 (or 23913888 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 478277620 is about 21869.5592090924. The cubic root of 478277620 is about 782.0358933732.

The spelling of 478277620 in words is "four hundred seventy-eight million, two hundred seventy-seven thousand, six hundred twenty".