2309479220 has 48 divisors (see below), whose sum is σ = 5066167680. Its totient is φ = 882685056.

The previous prime is 2309479181. The next prime is 2309479259. The reversal of 2309479220 is 229749032.

It is an interprime number because it is at equal distance from previous prime (2309479181) and next prime (2309479259).

It is a super-2 number, since 2×2309479220² = 10667388535223616800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 555911 + ... + 560049.

It is an arithmetic number, because the mean of its divisors is an integer number (105545160).

Almost surely, 2^2309479220 is an apocalyptic number.

2309479220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2309479220 is an abundant number, since it is smaller than the sum of its proper divisors (2756688460).

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

2309479220 is a wasteful number, since it uses less digits than its factorization.

2309479220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5384 (or 5382 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 2309479220 is about 48057.0413155034. The cubic root of 2309479220 is about 1321.8170606122.

The spelling of 2309479220 in words is "two billion, three hundred nine million, four hundred seventy-nine thousand, two hundred twenty".