473501538 has 84 divisors (see below), whose sum is σ = 1103258898. Its totient is φ = 152254080.

The previous prime is 473501537. The next prime is 473501549. The reversal of 473501538 is 835105374.

473501538 is a `hidden beast` number, since 4 + 73 + 50 + 1 + 538 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 135419769 + 338081769 = 11637^2 + 18387^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (473501537) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 5320198 + ... + 5320286.

Almost surely, 2^473501538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 473501538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551629449).

473501538 is an abundant number, since it is smaller than the sum of its proper divisors (629757360).

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

473501538 is an frugal number, since it uses more digits than its factorization.

473501538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 473501538 is about 21760.0904869442. The cubic root of 473501538 is about 779.4240422689.

The spelling of 473501538 in words is "four hundred seventy-three million, five hundred one thousand, five hundred thirty-eight".