464399383220 has 18 divisors (see below), whose sum is σ = 975245104806. Its totient is φ = 185758534240.

The previous prime is 464399383207. The next prime is 464399383229. The reversal of 464399383220 is 22383993464.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3790126096 + 460609257124 = 61564^2 + 678682^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464399383229) 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 5 ways as a sum of consecutive naturals, for example, 2971430 + ... + 3123810.

Almost surely, 2^464399383220 is an apocalyptic number.

It is an amenable number.

464399383220 is an abundant number, since it is smaller than the sum of its proper divisors (510845721586).

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

464399383220 is an frugal number, since it uses more digits than its factorization.

464399383220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304771 (or 152388 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 53.

The spelling of 464399383220 in words is "four hundred sixty-four billion, three hundred ninety-nine million, three hundred eighty-three thousand, two hundred twenty".