475297890 has 64 divisors (see below), whose sum is σ = 1193812992. Its totient is φ = 120960000.

The previous prime is 475297853. The next prime is 475297913. The reversal of 475297890 is 98792574.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64390 + ... + 71390.

It is an arithmetic number, because the mean of its divisors is an integer number (18653328).

Almost surely, 2^475297890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 475297890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596906496).

475297890 is an abundant number, since it is smaller than the sum of its proper divisors (718515102).

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

475297890 is a wasteful number, since it uses less digits than its factorization.

475297890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 475297890 is about 21801.3277118620. The cubic root of 475297890 is about 780.4084481426.

The spelling of 475297890 in words is "four hundred seventy-five million, two hundred ninety-seven thousand, eight hundred ninety".