472500018 has 48 divisors (see below), whose sum is σ = 1088380800. Its totient is φ = 147722400.

The previous prime is 472499983. The next prime is 472500029. The reversal of 472500018 is 810005274.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 472499964 and 472500000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27703 + ... + 41381.

It is an arithmetic number, because the mean of its divisors is an integer number (22674600).

Almost surely, 2^472500018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 472500018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544190400).

472500018 is an abundant number, since it is smaller than the sum of its proper divisors (615880782).

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

472500018 is a wasteful number, since it uses less digits than its factorization.

472500018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13807 (or 13804 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 472500018 is about 21737.0655333235. The cubic root of 472500018 is about 778.8741251681.

The spelling of 472500018 in words is "four hundred seventy-two million, five hundred thousand, eighteen".