475020820 has 24 divisors (see below), whose sum is σ = 1002774528. Its totient is φ = 189012000.

The previous prime is 475020809. The next prime is 475020827. The reversal of 475020820 is 28020574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475020827) 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, 58356 + ... + 65995.

It is an arithmetic number, because the mean of its divisors is an integer number (41782272).

Almost surely, 2^475020820 is an apocalyptic number.

It is an amenable number.

475020820 is an abundant number, since it is smaller than the sum of its proper divisors (527753708).

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

475020820 is a wasteful number, since it uses less digits than its factorization.

475020820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124551 (or 124549 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 475020820 is about 21794.9723560274. The cubic root of 475020820 is about 780.2567749830.

The spelling of 475020820 in words is "four hundred seventy-five million, twenty thousand, eight hundred twenty".