2220432320 has 28 divisors (see below), whose sum is σ = 5287405224. Its totient is φ = 888172800.

The previous prime is 2220432311. The next prime is 2220432341. The reversal of 2220432320 is 232340222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2220432292 and 2220432301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3469106 + ... + 3469745.

Almost surely, 2^2220432320 is an apocalyptic number.

2220432320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220432320 is an abundant number, since it is smaller than the sum of its proper divisors (3066972904).

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

2220432320 is an equidigital number, since it uses as much as digits as its factorization.

2220432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938868 (or 6938858 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2220432320 is about 47121.4634747267. The cubic root of 2220432320 is about 1304.6054247660.

Adding to 2220432320 its reverse (232340222), we get a palindrome (2452772542).

The spelling of 2220432320 in words is "two billion, two hundred twenty million, four hundred thirty-two thousand, three hundred twenty".