1226363500 has 48 divisors (see below), whose sum is σ = 2715148800. Its totient is φ = 483811200.

The previous prime is 1226363431. The next prime is 1226363507. The reversal of 1226363500 is 53636221.

It is not an unprimeable number, because it can be changed into a prime (1226363507) by changing a digit.

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, 19701 + ... + 53299.

It is an arithmetic number, because the mean of its divisors is an integer number (56565600).

Almost surely, 2^1226363500 is an apocalyptic number.

1226363500 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 1226363500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1357574400).

1226363500 is an abundant number, since it is smaller than the sum of its proper divisors (1488785300).

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

1226363500 is a wasteful number, since it uses less digits than its factorization.

1226363500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33691 (or 33679 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1226363500 is about 35019.4731542323. The cubic root of 1226363500 is about 1070.3843205575.

Adding to 1226363500 its reverse (53636221), we get a palindrome (1279999721).

The spelling of 1226363500 in words is "one billion, two hundred twenty-six million, three hundred sixty-three thousand, five hundred".