1816408 has 16 divisors (see below), whose sum is σ = 3715560. Its totient is φ = 825600.

The previous prime is 1816403. The next prime is 1816411. The reversal of 1816408 is 8046181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816403) by changing a digit.

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, 10233 + ... + 10408.

2^1816408 is an apocalyptic number.

It is an amenable number.

1816408 is an abundant number, since it is smaller than the sum of its proper divisors (1899152).

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

1816408 is a wasteful number, since it uses less digits than its factorization.

1816408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20658 (or 20654 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 1816408 is about 1347.7418150373. The cubic root of 1816408 is about 122.0125401425.

The spelling of 1816408 in words is "one million, eight hundred sixteen thousand, four hundred eight".