1226317240 has 16 divisors (see below), whose sum is σ = 2759213880. Its totient is φ = 490526880.

The previous prime is 1226317223. The next prime is 1226317273. The reversal of 1226317240 is 427136221.

It is a junction number, because it is equal to n+sod(n) for n = 1226317199 and 1226317208.

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 3 ways as a sum of consecutive naturals, for example, 15328926 + ... + 15329005.

Almost surely, 2^1226317240 is an apocalyptic number.

1226317240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226317240 is an abundant number, since it is smaller than the sum of its proper divisors (1532896640).

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

1226317240 is a wasteful number, since it uses less digits than its factorization.

1226317240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30657942 (or 30657938 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1226317240 is about 35018.8126583412. The cubic root of 1226317240 is about 1070.3708616330.

The spelling of 1226317240 in words is "one billion, two hundred twenty-six million, three hundred seventeen thousand, two hundred forty".