475856640 has 432 divisors, whose sum is σ = 1971315360. Its totient is φ = 108380160.

The previous prime is 475856587. The next prime is 475856663. The reversal of 475856640 is 46658574.

475856640 is a `hidden beast` number, since 4 + 7 + 585 + 6 + 64 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1693300 + ... + 1693580.

It is an arithmetic number, because the mean of its divisors is an integer number (4563230).

Almost surely, 2^475856640 is an apocalyptic number.

475856640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475856640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985657680).

475856640 is an abundant number, since it is smaller than the sum of its proper divisors (1495458720).

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

475856640 is a wasteful number, since it uses less digits than its factorization.

475856640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 475856640 is about 21814.1385344460. The cubic root of 475856640 is about 780.7141388610.

The spelling of 475856640 in words is "four hundred seventy-five million, eight hundred fifty-six thousand, six hundred forty".