1217394414 has 32 divisors (see below), whose sum is σ = 2768240640. Its totient is φ = 396360216.

The previous prime is 1217394403. The next prime is 1217394419. The reversal of 1217394414 is 4144937121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217394419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259822 + ... + 264465.

It is an arithmetic number, because the mean of its divisors is an integer number (86507520).

Almost surely, 2^1217394414 is an apocalyptic number.

1217394414 is an abundant number, since it is smaller than the sum of its proper divisors (1550846226).

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

1217394414 is a wasteful number, since it uses less digits than its factorization.

1217394414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524341 (or 524335 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1217394414 is about 34891.1796017274. The cubic root of 1217394414 is about 1067.7684923023.

The spelling of 1217394414 in words is "one billion, two hundred seventeen million, three hundred ninety-four thousand, four hundred fourteen".