1816214408 has 16 divisors (see below), whose sum is σ = 3584634000. Its totient is φ = 860312016.

The previous prime is 1816214399. The next prime is 1816214417. The reversal of 1816214408 is 8044126181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1816214399) and next prime (1816214417).

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, 5974238 + ... + 5974541.

It is an arithmetic number, because the mean of its divisors is an integer number (224039625).

Almost surely, 2^1816214408 is an apocalyptic number.

It is an amenable number.

1816214408 is a deficient number, since it is larger than the sum of its proper divisors (1768419592).

1816214408 is a wasteful number, since it uses less digits than its factorization.

1816214408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948804 (or 11948800 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1816214408 is about 42617.0670975843. The cubic root of 1816214408 is about 1220.0820530677.

The spelling of 1816214408 in words is "one billion, eight hundred sixteen million, two hundred fourteen thousand, four hundred eight".