2320403220 has 48 divisors (see below), whose sum is σ = 7219033920. Its totient is φ = 618774048.

The previous prime is 2320403213. The next prime is 2320403243. The reversal of 2320403220 is 223040232.

2320403220 is a `hidden beast` number, since 23 + 20 + 403 + 220 = 666.

It is a super-2 number, since 2×2320403220² = 10768542206772736800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2320403193 and 2320403202.

It is a congruent number.

It is an unprimeable number.

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, 2147982 + ... + 2149061.

It is an arithmetic number, because the mean of its divisors is an integer number (150396540).

Almost surely, 2^2320403220 is an apocalyptic number.

2320403220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320403220 is an abundant number, since it is smaller than the sum of its proper divisors (4898630700).

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

2320403220 is a wasteful number, since it uses less digits than its factorization.

2320403220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297061 (or 4297053 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 2320403220 is about 48170.5638331129. The cubic root of 2320403220 is about 1323.8978792976.

Adding to 2320403220 its reverse (223040232), we get a palindrome (2543443452).

The spelling of 2320403220 in words is "two billion, three hundred twenty million, four hundred three thousand, two hundred twenty".