478172280 has 32 divisors (see below), whose sum is σ = 1434517200. Its totient is φ = 127512576.

The previous prime is 478172273. The next prime is 478172281. The reversal of 478172280 is 82271874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478172281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1992265 + ... + 1992504.

Almost surely, 2^478172280 is an apocalyptic number.

478172280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478172280 is an abundant number, since it is smaller than the sum of its proper divisors (956344920).

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

478172280 is a wasteful number, since it uses less digits than its factorization.

478172280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984783 (or 3984779 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 478172280 is about 21867.1507060248. The cubic root of 478172280 is about 781.9784750411.

The spelling of 478172280 in words is "four hundred seventy-eight million, one hundred seventy-two thousand, two hundred eighty".