1226323340 has 96 divisors (see below), whose sum is σ = 2865300480. Its totient is φ = 437158400.

The previous prime is 1226323333. The next prime is 1226323379. The reversal of 1226323340 is 433236221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4364000 + ... + 4364280.

It is an arithmetic number, because the mean of its divisors is an integer number (29846880).

Almost surely, 2^1226323340 is an apocalyptic number.

1226323340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226323340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1432650240).

1226323340 is an abundant number, since it is smaller than the sum of its proper divisors (1638977140).

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

1226323340 is a wasteful number, since it uses less digits than its factorization.

1226323340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 1226323340 is about 35018.8997542755. The cubic root of 1226323340 is about 1070.3726363917.

Adding to 1226323340 its reverse (433236221), we get a palindrome (1659559561).

The spelling of 1226323340 in words is "one billion, two hundred twenty-six million, three hundred twenty-three thousand, three hundred forty".