478172102 has 16 divisors (see below), whose sum is σ = 722760192. Its totient is φ = 237257160.

The previous prime is 478172087. The next prime is 478172111. The reversal of 478172102 is 201271874.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387827 + ... + 389057.

It is an arithmetic number, because the mean of its divisors is an integer number (45172512).

Almost surely, 2^478172102 is an apocalyptic number.

478172102 is a deficient number, since it is larger than the sum of its proper divisors (244588090).

478172102 is a wasteful number, since it uses less digits than its factorization.

478172102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 478172102 is about 21867.1466359925. The cubic root of 478172102 is about 781.9783780104.

The spelling of 478172102 in words is "four hundred seventy-eight million, one hundred seventy-two thousand, one hundred two".