469515309 has 8 divisors (see below), whose sum is σ = 626183712. Its totient is φ = 312928560.

The previous prime is 469515283. The next prime is 469515331. The reversal of 469515309 is 903515964.

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

It is not a de Polignac number, because 469515309 - 2¹³ = 469507117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469515349) 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, 5422 + ... + 31119.

It is an arithmetic number, because the mean of its divisors is an integer number (78272964).

Almost surely, 2^469515309 is an apocalyptic number.

It is an amenable number.

469515309 is a deficient number, since it is larger than the sum of its proper divisors (156668403).

469515309 is a wasteful number, since it uses less digits than its factorization.

469515309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40827.

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 469515309 is about 21668.3019408536. The cubic root of 469515309 is about 777.2306509371.

The spelling of 469515309 in words is "four hundred sixty-nine million, five hundred fifteen thousand, three hundred nine".