470640261 has 16 divisors (see below), whose sum is σ = 772333184. Its totient is φ = 248249664.

The previous prime is 470640253. The next prime is 470640299. The reversal of 470640261 is 162046074.

It is not a de Polignac number, because 470640261 - 2³ = 470640253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470640211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861706 + ... + 862251.

It is an arithmetic number, because the mean of its divisors is an integer number (48270824).

Almost surely, 2^470640261 is an apocalyptic number.

It is an amenable number.

470640261 is a deficient number, since it is larger than the sum of its proper divisors (301692923).

470640261 is a wasteful number, since it uses less digits than its factorization.

470640261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723980.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 470640261 is about 21694.2448819958. The cubic root of 470640261 is about 777.8509003580.

The spelling of 470640261 in words is "four hundred seventy million, six hundred forty thousand, two hundred sixty-one".