1226366240 has 96 divisors (see below), whose sum is σ = 3192436800. Its totient is φ = 441472000.

The previous prime is 1226366209. The next prime is 1226366249. The reversal of 1226366240 is 426636221.

It is a super-2 number, since 2×1226366240² = 3007948309223475200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1226366197 and 1226366206.

It is not an unprimeable number, because it can be changed into a prime (1226366249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174311 + ... + 181209.

It is an arithmetic number, because the mean of its divisors is an integer number (33254550).

Almost surely, 2^1226366240 is an apocalyptic number.

1226366240 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 1226366240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1596218400).

1226366240 is an abundant number, since it is smaller than the sum of its proper divisors (1966070560).

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

1226366240 is a wasteful number, since it uses less digits than its factorization.

1226366240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026 (or 7018 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 1226366240 is about 35019.5122753016. The cubic root of 1226366240 is about 1070.3851177249.

The spelling of 1226366240 in words is "one billion, two hundred twenty-six million, three hundred sixty-six thousand, two hundred forty".