472303509 has 8 divisors (see below), whose sum is σ = 636814080. Its totient is φ = 311330976.

The previous prime is 472303487. The next prime is 472303523. The reversal of 472303509 is 905303274.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 472303509 - 2¹⁵ = 472270741 is a prime.

It is a super-2 number, since 2×472303509² = 446141209227426162, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 472303509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472303589) 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, 884197 + ... + 884730.

It is an arithmetic number, because the mean of its divisors is an integer number (79601760).

Almost surely, 2^472303509 is an apocalyptic number.

It is an amenable number.

472303509 is a deficient number, since it is larger than the sum of its proper divisors (164510571).

472303509 is a wasteful number, since it uses less digits than its factorization.

472303509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769019.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 472303509 is about 21732.5449269063. The cubic root of 472303509 is about 778.7661343443.

The spelling of 472303509 in words is "four hundred seventy-two million, three hundred three thousand, five hundred nine".