1818408 has 16 divisors (see below), whose sum is σ = 4546080. Its totient is φ = 606128.

The previous prime is 1818407. The next prime is 1818409. The reversal of 1818408 is 8048181.

It is an interprime number because it is at equal distance from previous prime (1818407) and next prime (1818409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818407) 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, 37860 + ... + 37907.

It is an arithmetic number, because the mean of its divisors is an integer number (284130).

2^1818408 is an apocalyptic number.

It is an amenable number.

1818408 is an abundant number, since it is smaller than the sum of its proper divisors (2727672).

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

1818408 is a wasteful number, since it uses less digits than its factorization.

1818408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75776 (or 75772 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 1818408 is about 1348.4835927812. The cubic root of 1818408 is about 122.0573053369.

The spelling of 1818408 in words is "one million, eight hundred eighteen thousand, four hundred eight".