1122432320 has 28 divisors (see below), whose sum is σ = 2672792724. Its totient is φ = 448972800.

The previous prime is 1122432317. The next prime is 1122432349. The reversal of 1122432320 is 232342211.

It can be written as a sum of positive squares in 2 ways, for example, as 664814656 + 457617664 = 25784^2 + 21392^2 .

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 = 1122432292 and 1122432301.

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, 1753481 + ... + 1754120.

It is an arithmetic number, because the mean of its divisors is an integer number (95456883).

Almost surely, 2^1122432320 is an apocalyptic number.

1122432320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122432320 is an abundant number, since it is smaller than the sum of its proper divisors (1550360404).

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

1122432320 is an equidigital number, since it uses as much as digits as its factorization.

1122432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507618 (or 3507608 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1122432320 is about 33502.7210835180. The cubic root of 1122432320 is about 1039.2500510542.

Adding to 1122432320 its reverse (232342211), we get a palindrome (1354774531).

The spelling of 1122432320 in words is "one billion, one hundred twenty-two million, four hundred thirty-two thousand, three hundred twenty".