469440665 has 4 divisors (see below), whose sum is σ = 563328804. Its totient is φ = 375552528.

The previous prime is 469440637. The next prime is 469440667. The reversal of 469440665 is 566044964.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155052304 + 314388361 = 12452^2 + 17731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-469440665 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (469440667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46944062 + ... + 46944071.

It is an arithmetic number, because the mean of its divisors is an integer number (140832201).

Almost surely, 2^469440665 is an apocalyptic number.

It is an amenable number.

469440665 is a deficient number, since it is larger than the sum of its proper divisors (93888139).

469440665 is an equidigital number, since it uses as much as digits as its factorization.

469440665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93888138.

The product of its (nonzero) digits is 622080, while the sum is 44.

The square root of 469440665 is about 21666.5794485424. The cubic root of 469440665 is about 777.1894604595.

The spelling of 469440665 in words is "four hundred sixty-nine million, four hundred forty thousand, six hundred sixty-five".