1116213426 has 64 divisors (see below), whose sum is σ = 2508485760. Its totient is φ = 367899840.

The previous prime is 1116213383. The next prime is 1116213433. The reversal of 1116213426 is 6243126111.

It is a happy number.

1116213426 is a `hidden beast` number, since 1 + 1 + 1 + 621 + 34 + 2 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1116213426.

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, 3372081 + ... + 3372411.

It is an arithmetic number, because the mean of its divisors is an integer number (39195090).

Almost surely, 2^1116213426 is an apocalyptic number.

1116213426 is an abundant number, since it is smaller than the sum of its proper divisors (1392272334).

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

1116213426 is a wasteful number, since it uses less digits than its factorization.

1116213426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 850 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1116213426 is about 33409.7803943696. The cubic root of 1116213426 is about 1037.3271559163.

Adding to 1116213426 its reverse (6243126111), we get a palindrome (7359339537).

The spelling of 1116213426 in words is "one billion, one hundred sixteen million, two hundred thirteen thousand, four hundred twenty-six".