475142784 has 64 divisors (see below), whose sum is σ = 1274698080. Its totient is φ = 156800000.

The previous prime is 475142783. The next prime is 475142807. The reversal of 475142784 is 487241574.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (475142783) 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, 32659 + ... + 44909.

Almost surely, 2^475142784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475142784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637349040).

475142784 is an abundant number, since it is smaller than the sum of its proper divisors (799555296).

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

475142784 is a wasteful number, since it uses less digits than its factorization.

475142784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12369 (or 12357 counting only the distinct ones).

The product of its digits is 250880, while the sum is 42.

The square root of 475142784 is about 21797.7701611885. The cubic root of 475142784 is about 780.3235475607.

The spelling of 475142784 in words is "four hundred seventy-five million, one hundred forty-two thousand, seven hundred eighty-four".