478091730 has 16 divisors (see below), whose sum is σ = 1147420224. Its totient is φ = 127491120.

The previous prime is 478091711. The next prime is 478091741. The reversal of 478091730 is 37190874.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7968166 + ... + 7968225.

It is an arithmetic number, because the mean of its divisors is an integer number (71713764).

Almost surely, 2^478091730 is an apocalyptic number.

478091730 is an abundant number, since it is smaller than the sum of its proper divisors (669328494).

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

478091730 is a wasteful number, since it uses less digits than its factorization.

478091730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936401.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 478091730 is about 21865.3088247113. The cubic root of 478091730 is about 781.9345634594.

The spelling of 478091730 in words is "four hundred seventy-eight million, ninety-one thousand, seven hundred thirty".