475908906 has 64 divisors (see below), whose sum is σ = 1060356096. Its totient is φ = 141187200.

The previous prime is 475908883. The next prime is 475908943. The reversal of 475908906 is 609809574.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1242391 + ... + 1242773.

It is an arithmetic number, because the mean of its divisors is an integer number (16568064).

Almost surely, 2^475908906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475908906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530178048).

475908906 is an abundant number, since it is smaller than the sum of its proper divisors (584447190).

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

475908906 is a wasteful number, since it uses less digits than its factorization.

475908906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 475908906 is about 21815.3364860595. The cubic root of 475908906 is about 780.7427212168.

The spelling of 475908906 in words is "four hundred seventy-five million, nine hundred eight thousand, nine hundred six".