478172082 has 16 divisors (see below), whose sum is σ = 959726880. Its totient is φ = 158826912.

The previous prime is 478172063. The next prime is 478172087. The reversal of 478172082 is 280271874.

It is a self number, because there is not a number n which added to its sum of digits gives 478172082.

It is not an unprimeable number, because it can be changed into a prime (478172087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139107 + ... + 142502.

It is an arithmetic number, because the mean of its divisors is an integer number (59982930).

Almost surely, 2^478172082 is an apocalyptic number.

478172082 is an abundant number, since it is smaller than the sum of its proper divisors (481554798).

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

478172082 is a wasteful number, since it uses less digits than its factorization.

478172082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281897.

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

The square root of 478172082 is about 21867.1461786855. The cubic root of 478172082 is about 781.9783671080.

The spelling of 478172082 in words is "four hundred seventy-eight million, one hundred seventy-two thousand, eighty-two".