1418323809 has 16 divisors (see below), whose sum is σ = 2163611520. Its totient is φ = 809587200.

The previous prime is 1418323807. The next prime is 1418323813. The reversal of 1418323809 is 9083238141.

It is not a de Polignac number, because 1418323809 - 2¹ = 1418323807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1418323807) 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, 16842 + ... + 55859.

It is an arithmetic number, because the mean of its divisors is an integer number (135225720).

Almost surely, 2^1418323809 is an apocalyptic number.

It is an amenable number.

1418323809 is a deficient number, since it is larger than the sum of its proper divisors (745287711).

1418323809 is an equidigital number, since it uses as much as digits as its factorization.

1418323809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73640.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1418323809 is about 37660.6400503231. The cubic root of 1418323809 is about 1123.5484314761.

The spelling of 1418323809 in words is "one billion, four hundred eighteen million, three hundred twenty-three thousand, eight hundred nine".